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Videos uploaded by user “Derpy Networking”
STP Root Bridge
 
03:13
Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps http://fc03.deviantart.net/fs71/i/2012/036/9/4/reflective_daring_do_by_xn_dragon-d4orrhs.png
Views: 5829 Derpy Networking
STP Designated ports
 
04:21
Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps Trixie: http://jotoast.deviantart.com/art/Trixie-Vector-318893769
Views: 13288 Derpy Networking
Configuring Cisco LACP EtherChannel
 
07:47
Rarity(config)#interface range fa0/1-2 Rarity(config-if-range)#channel-group 1 mode active Rarity(config)#interface port-channel 1 Rarity(config-if)#switchport mode trunk ____________________________________________________________________ Coco_Pommel(config)#int range fa0/1-2 Coco_Pommel (config-if-range)#channel-group 2 mode passive Coco_Pommel (config)#interface port-channel 2 Coco_Pommel (config-if)#switchport mode trunk Rarity: http://images6.fanpop.com/image/photos/33100000/Rarity-hairity-33118602-1600-1742.png Coco Pommel: https://tse3.mm.bing.net/th?id=OIP.M60edd3455cccb15eee759b1192d7e23eo0&pid=15.
Views: 14468 Derpy Networking
CCNA 200-125: MLPPP Configuration
 
09:05
CCNA 200-125: MLPPP interface Multilink1 ip address 192.168.0.1 255.255.255.0 ppp multilink ppp multilink group 1 ! ! interface Serial0/0/0 no ip address encapsulation ppp ppp multilink ppp multilink group 1 ! interface Serial0/1/0 no ip address encapsulation ppp ppp multilink ppp multilink group 1 Derpy: http://www.deviantart.com/art/Derpy-Sees-What-You-Do-349753314
Views: 3629 Derpy Networking
STP Root port
 
07:03
Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps Trixie: http://jotoast.deviantart.com/art/Trixie-Vector-318893769
Views: 8566 Derpy Networking
TCP Sequence and Acknowledgment Numbers
 
14:28
Don't believe me? Well, follow along with the flowchart and Wireshark capture. Wireshark: http://www.derpy.tips/stuff/derpflow.pcapng Flowchart: http://www.derpy.tips/stuff/TCP_ACK_SEQ.png twilight:http://i197.photobucket.com/albums/aa180/demon6590/1094.png server:https://www.iconfinder.com/icons/214952/cloud_clouds_cloudy_computing_datacenter_host_hoster_hosting_network_saas_server_service_upload_weather_icon#size=128
Views: 51417 Derpy Networking
CCNA 200-125: PPPoE Configuration
 
10:17
PPPoE Configuration http://derpwave.deviantart.com/art/MLP-muffin-302150394 Derpy: interface Dialer2 dialer pool 1 ! encapsulation ppp ppp chap hostname Muffins ppp chap password Derps ! mtu 1492 ip address negotiated interface FastEthernet0/0 no ip address pppoe enable pppoe-client dial-pool-number 1 ISP : !Config is from the CCNA book ip local pool WOPool 10.1.3.2 10.1.3.254 bba-group pppoe WOGroup virtual-template 1 ! username Muffins password Derps ! interface virtual-template 1 ip address 10.1.3.1 255.255.255.0 peer default ip address pool WOPool ppp authentication chap callin interface f0/0 no ip address pppoe enable group WOGroup no shutdown mac-address C0fe.c0fe.c0fe
Views: 4964 Derpy Networking
CCNA 200-125: SNMPv3 Configuration
 
14:25
snmp-server group Derp_Group v3 priv write v1default snmp-server user Derp_user Derpy_Group v3 auth sha AUTH_PASS priv aes 256 PRIV_PASS PowerSNMP: http://powersnmp.com/snmp-free-manager.aspx Derpy: http://shadow15991.deviantart.com/art/Derpy-s-costume-282777688
Views: 6668 Derpy Networking
RIP Auto-Summary
 
09:47
The RIPssssssssssssssssss Pinkie: http://silentmatten.deviantart.com/art/Moustache-Pinkie-Pie-346736106
Views: 2428 Derpy Networking
IP vs MAC Address
 
08:38
The key point is that a switch doesn't understand IP addresses, only MAC addresses. Thus the router needs to find the destination MAC with ARP before it sends it to the switch. Then the switch can forward the frame out the right port. Yes, you'd think an IP address would be enough (Unique), but again switches don't understand IP so we need to find the MAC. Twilight Sparkle: http://psychicwalnut.deviantart.com/art/Angry-Princess-Twilight-456389112 Fluttershy: http://img14.deviantart.net/d2d8/i/2011/123/2/1/dancing_fluttershy_by_moongazeponies-d3fiy2b.png Trixie: http://img06.deviantart.net/09e3/i/2011/194/9/e/trixie_by_shelmo69-d3nxapz.png
Views: 4711 Derpy Networking
CCNA 200-125: SNMPv3 Informs
 
13:31
snmp-server engineID remote 192.168.0.2 446172742E506F776572534E4D50 snmp-server group Derp_Group v3 priv write v1default snmp-server user Derp_User Derp_Group v3 auth sha SHA_PASS priv aes 256 PRIV_PASS snmp-server user Derp_User Derp_Group remote 192.168.0.2 v3 auth sha SHA_PASS priv aes 256 PRIV_PASS snmp-server host 192.168.0.2 informs version 3 priv Derp_User CCNA 200-125: SNMPv3 Configuration : https://www.youtube.com/watch?v=WTgKmB1Hyuo&t=2s CCNA 200-125: SNMPv3 Traps: https://www.youtube.com/watch?v=AyK7Yf4FVqk&t=6s PowerSNMP: http://powersnmp.com/snmp-free-manager.aspx Derpy: http://mylittlefacewhen.com/f/2378/
Views: 1021 Derpy Networking
Full-duplex vs Half-duplex
 
05:43
Hello! Granny: http://stardustxiii.deviantart.com/art/Young-Granny-Smith-278417680 Twilight: http://scrimpeh.deviantart.com/art/Insane-Twilight-Vector-281501950
Views: 2172 Derpy Networking
Switching loops
 
04:50
Too manys loops! Check out my STP playlist: https://www.youtube.com/watch?v=Yo40Jzqb7Xw&list=PLDzveA55I0_gLMwoYV2tXpuTuGetEYs6m Big Mac: https://tse4.mm.bing.net/th?id=OIP.Mb71e277ce958c6397ae77845cb2a6df8H0&pid=15.1 cheerilee: http://moongazeponies.deviantart.com/art/Cheerilee-208555238
Views: 7172 Derpy Networking
STP Port Roles: Scenario 1
 
15:10
I know this is long but it's worth it. Sorry if my speech is broken. It's super late out and for some reason, I wanted to make this. ;) STP playlist: https://www.youtube.com/playlist?list=PLDzveA55I0_gLMwoYV2tXpuTuGetEYs6m Fluttershy: http://puppetkamon.deviantart.com/art/Angry-Fluttershy-389542037 Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps
Views: 2661 Derpy Networking
How to capture TCP flow
 
04:05
Yay! All the muffin protocols!
Views: 540 Derpy Networking
Cisco IP NAT Outside vs Inside
 
14:01
NAT Playlist: https://www.youtube.com/playlist?list=PLDzveA55I0_gGGIxKOH3XUbV331J8uLU6 http://blog.ine.com/2008/02/15/the-inside-and-outside-of-nat/ http://www.astorinonetworks.com/2011/08/16/the-inside-outside-of-nat-for-overlapping-networks/ https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/13770-1.html https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/13774-3.html IP nat inside source (Normal NAT for Internet) o Translates the source of the IP packets when traveling from inside to outside o Translates the destination of the IP packets when traveling from outside to inside IP nat outside source (Useful for overlapping subnets) o Translates the source of the IP packets when traveling from outside to inside o Translates the destination of the IP packets when traveling inside to outside
Views: 1438 Derpy Networking
CCNA 200-125: SNMPv3 Traps
 
11:03
Previous Video: https://www.youtube.com/watch?v=WTgKmB1Hyuo snmp-server group Derp_Group v3 priv write v1default snmp-server user Derp_user Derpy_Group v3 auth sha AUTH_PASS priv aes 256 PRIV_PASS snmp-server host 192.168.0.2 version 3 priv Derp_user snmp-server enable traps PowerSNMP: http://powersnmp.com/snmp-free-manager.aspx Derpy: http://shadow15991.deviantart.com/art/Derpy-s-costume-282777688
Views: 2083 Derpy Networking
Failed CCNA!!!
 
10:43
CCNA 200-125. Sorry for click bait. Sending Muffings! Derpy: https://www.deviantart.com/yanoda/art/Muffin-299606713
Views: 137 Derpy Networking
IPsec VPN Tunnel
 
26:46
Pre-setup: Usually this is the perimeter router so allow the firewall. Optional access-list acl permit udp source wildcard destination wildcard eq isakmp access-list acl permit esp source wildcard destination wildcard access-list acl permit ahp source wildcard destination wildcard You need to enable to securityk9 technology-package Router(config)#license boot module c2900 technology-package securityk9 Router(config)#reload Task 1: Configure the ISAKMP policy for IKE Phase 1 There are seven default isakmp policies. The most secure is the default. We will configure our own. You can remember this by HAGLE. Hash, Authentication, Group (DH), Lifetime, Encryption. Router(config)#crypto isakmp policy 1 Router(config-isakmp)#hash sha Router(config-isakmp)#authentication pre-share Router(config-isakmp)#group 5 Router(config-isakmp)#lifetime 3600 Router(config-isakmp)#encryption aes 256 We used a pre-shared key for authentication so we need to specify the password for the first phase. Router(config)#crypto isakmp key derpyisbestpony address 208.77.5.1 show crypto isakmp policy Task 2: Configure the IPsec Policy for IKE Phase 2 Configure the encryption and hashing algorithms that you will use for the data sent thought the IPsec tunnel. Hence the transform. Router(config)#crypto ipsec transform-set transform_name esp-aes esp-sha-hmac Task 3: Configure ACL to define interesting traffic Even though the tunnel is setup it doesn’t exist yet. Interesting traffic must be detected before IKE Phase 1 negotiations can begin. Allow the local lan to the remote lan. Router(config)#access-list 101 permit ip 192.168.0.0 0.0.0.255 10.0.0.0 0.0.0.255 show crypto isakmp sa Task 4: Configure a Crypto Map for the IPsec Policy Now that interesting traffic is defined and an IPsec transform set is configured, you need to bind them together with a crypto map. Rotuer(config)# crypto map map_name seq_num ipsec-isakmp What traffic will be interesting? The access-list we made before. Router(config-crypto-map)#match address 101 The transform-set we created earlier for the IPsec tunnel. Router(config-crypto-map)# set transform-set transform_name The peer router you’re connecting to. Router(config-crypto-map)#set peer 172.30.2.2 You need to set the type of DH you want to use. Router(config-crypto-map)#set pfs group5 How long these setting will last before it’s renegotiated Router(config-crypto-map)#set security-association lifetime seconds 900 Task 5: Apply the IPsec Policy Apply the crypto map to the interface. Router(config)#interface serial0/0/0 Router(config-if)#crypto map map_name show crypto map derpy: http://th03.deviantart.net/fs71/PRE/f/2012/302/6/1/derpy_hooves_by_freak0uo-d5jedxp.png twilight: http://fc03.deviantart.net/fs70/i/2012/226/e/5/twilight_sparkle_vector_by_ikillyou121-d56s0vc.png
Views: 12975 Derpy Networking
CCNA 200-125: SPAN
 
07:54
CCNA 200-125: SPAN monitor session 1 source interface Fa0/2 monitor session 1 destination interface Fa0/3
Views: 355 Derpy Networking
Cisco NTP
 
09:34
clock timezone CST -6 clock summer-time CDT recurring clock set 13:00:00 19 May 2018 ntp server 129.6.15.28 Glimmer: https://deratrox.deviantart.com/art/Vector-Starlight-Glimmer-645017719
Views: 117 Derpy Networking
eBGP Configuration
 
08:15
How do we setup ebgp? Celestia: http://felix-kot.deviantart.com/art/Celestia-in-perplexity-264060440 Luna: https://derpicdn.net/img/2012/11/1/138616/medium.gif Intro Luna: https://s.mlpforums.com/uploads/post_images/img-1050425-2-__panties_and_stockings_for_luna__no_background_by_jungleanimal-d4o34fr.png
Views: 783 Derpy Networking
Cisco Bandwidth command
 
09:14
In this lab I'm using EIGRP! Distance vector. This gives you a general idea of the bandwidth command. Depending on your routing protocol the behavior might be different. You also learn a little about ICMP TTLs. bon bon: http://mylittleponygalore.tumblr.com/image/24471315881 colgate: http://pre05.deviantart.net/b0c2/th/pre/i/2011/331/5/5/colgate_wet_mane_by_dualingeyes454-d4hhawm.png Derpy: can't find her! She is everywhere! derp
Views: 6037 Derpy Networking
CCNA 200-125: PPPoE Troubleshooting
 
14:20
CCNA 200-125: PPPoE Troubleshooting First Video: https://www.youtube.com/watch?v=QW-HocTt5rA http://derpwave.deviantart.com/art/MLP-muffin-302150394
Views: 164 Derpy Networking
Clock rate
 
08:28
I'm going coco for clocks! pinkie pie: http://pikn2.deviantart.com/art/Pinkie-Pie-Party-Vector-284673319 luna:http://mr-loco-moto.deviantart.com/art/Luna-in-a-hoodie-313288701
Views: 369 Derpy Networking
Collision domains
 
07:26
Colliding muffins! Whoa! Twilight Sparkle: http://psychicwalnut.deviantart.com/art/Angry-Princess-Twilight-456389112 Fluttershy: http://img14.deviantart.net/d2d8/i/2011/123/2/1/dancing_fluttershy_by_moongazeponies-d3fiy2b.png Trixie: http://img06.deviantart.net/09e3/i/2011/194/9/e/trixie_by_shelmo69-d3nxapz.png
Views: 468 Derpy Networking
Cisco UDLD
 
11:40
Switch(config)#udld {aggressive|enable} Switch(config-if)#udld port [aggressive] Switch#udld reset Switch#show udld [fa0/2] Switch# show interfaces status err-disabled mac access-list extended UDLD_BLOCK deny any host 0100.0ccc.cccc permit any any interface FastEthernet0/2 mac access-group UDLD_BLOCK in derpy.network/cisco/udld.pcapng https://dashiesparkle.deviantart.com/art/Vector-273-Coco-Pommel-2-563252760
Views: 217 Derpy Networking
Cisco Errdisable Recovery
 
05:32
#Detects all causes by default Switch(config)#errdisable detect cause {all | cause-name} Switch(config)#errdisable recovery cause {all | cause-name} Switch(config)#errdisable recovery interval {seconds} Switch#show interfaces status err-disabled Switch#show errdisable recovery https://luckreza8.deviantart.com/art/Mlp-Fim-Fluttershy-vector-6-737484417 https://nabbiekitty.deviantart.com/art/Discord-336587397
Views: 83 Derpy Networking
STP Port Roles: Scenario 3
 
12:06
STP playlist: https://www.youtube.com/playlist?list=PLDzveA55I0_gLMwoYV2tXpuTuGetEYs6m Fluttershy: http://puppetkamon.deviantart.com/art/Angry-Fluttershy-389542037 Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps
Views: 432 Derpy Networking
Can't create VLANs (VTP)
 
05:46
VTP will cause issues with VLANS. If you aren't using VTP, disable it.
Views: 76 Derpy Networking
STP part 2
 
07:55
You made it to the second one! Congrats on getting this far. *gives muffin* Find the Root Bridge 1. Find the root bridge with the lowest priority or MAC address. Sometimes called the Bridge ID. 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Finding the Designated ports for LAN segments. 1. Between non-root switch segments, find the switch that has the lost cost to the root bridge. 2. Lowest BID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps
Views: 155 Derpy Networking
EtherChannel
 
08:23
Twilight(config)#interface range fa0/1-4 Twilight(config-if-range)#channel-group 2 mode on Twilight(config-if-range)#exit Twilight(config)#interface port-channel 2 Twilight(config-if)#switchport mode trunk ___________________________________________ Flutter(config)#interface range fa0/1-4 Flutter(config-if-range)#channel-group 1 mode on Flutter(config-if-range)#exit Flutter(config)#interface port-channel 1 Flutter(config-if)#switchport mode trunk fluttershy: http://proenix.deviantart.com/art/Scared-Fluttershy-297771368 twilight sparkle: http://ancientkale.deviantart.com/art/Twilight-Sparkle-Vector-253757237
Views: 275 Derpy Networking
STP Designated ports with Hubs
 
20:38
Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps https://www.youtube.com/playlist?list=PLDzveA55I0_gLMwoYV2tXpuTuGetEYs6m Apple: https://jhayarr23.deviantart.com/art/MLP-Vector-Granny-Smith-Apple-Pie-1-696912364 Rainbow: https://www.deviantart.com/art/Rainbow-as-Tracer-712246272
Views: 282 Derpy Networking
Configuring NAT Pools on Cisco routers
 
13:06
Previous Video: https://www.youtube.com/watch?v=wPIjSqZsQyM NAT Playlist: https://www.youtube.com/playlist?list=PLDzveA55I0_gGGIxKOH3XUbV331J8uLU6 Translate interesting traffic. Butter(config)#access-list 1 permit 10.0.0.0 0.0.0.255 Define the pool of address that will be used for translation. Butter(config)#ip nat pool POOL_NAME 100.50.0.0 100.50.0.3 netmask 255.255.255.252 Map the access list to the interface. Butter(config)#ip nat inside source list 1 pool POOL_NAME [overload] Define the outside and inside interfaces Butter(config)#interface s0/0/0 Butter(config-if)#ip nat outside Butter(config)#interface g0/0 Butter(config-if)#ip nat inside pinkie pie: hidden on the interwebs! Sorry! luna: http://mylittlefacewhen.com/f/9286/ fluttershy: http://crusierpl.deviantart.com/art/Scared-Fluttershy-289567767
Views: 1841 Derpy Networking
STP part 3
 
08:32
Phew almost through! Find the Root Bridge 1. Find the root bridge with the lowest priority or MAC address. Sometimes called the Bridge ID. 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Finding the Designated ports for LAN segments. 1. Between non-root switch segments, find the switch that has the lost cost to the root bridge. 2. Lowest BID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps
Views: 98 Derpy Networking
VTP Pruning
 
09:04
What ultimately is allowed out the trunk port is the last level. The very bottom tells you what will go out. Pinkie Pie: https://www.deviantart.com/j5a4/art/pinkie-various-vectors-483341227
Views: 96 Derpy Networking
TCP Flow Control
 
09:58
Ha! TCP is FUN! Wanna follow along? Download my flowchat. Previous Video: https://www.youtube.com/watch?v=8XJPZttC4RM Flowchart: http://www.derpy.tips/stuff/TCP_FLOW_CONTROL.png twilight: http://i197.photobucket.com/albums/aa180/demon6590/1094.png server: https://tse2.mm.bing.net/th?id=OIP.Mfe35be509909907a34722bda99c7454co0&pid=15.1
Views: 16696 Derpy Networking
CCNA 200-125: SNMP Traps v2c
 
08:51
CCNA 200-125: SNMP Traps 2c snmp-server community DERP RW snmp-server host 192.168.0.2 version 2c DERP snmp-server enable traps PowerSNMP: http://powersnmp.com/snmp-free-manager.aspx Paessler SNMP Tester: https://www.paessler.com/tools/snmptester Syslog Watcher: https://syslogwatcher.com/cmd-tools/ Cisco SNMP Object Navigator: http://snmp.cloudapps.cisco.com/Support/SNMP/do/BrowseOID.do?local=en Derpy: http://images5.fanpop.com/image/photos/28700000/Derpy-my-little-pony-friendship-is-magic-28778362-766-800.jpg Computer Icon: https://www.iconfinder.com/icons/100125/computer_icon
Views: 902 Derpy Networking
Broadcast domains
 
02:13
Making sense of networking is easy peasy! You'll be a pro in no time-ish! Twilight Sparkle: http://psychicwalnut.deviantart.com/art/Angry-Princess-Twilight-456389112 Fluttershy: http://img14.deviantart.net/d2d8/i/2011/123/2/1/dancing_fluttershy_by_moongazeponies-d3fiy2b.png Trixie: http://img06.deviantart.net/09e3/i/2011/194/9/e/trixie_by_shelmo69-d3nxapz.png
Views: 56 Derpy Networking
FreeNAS Corral: VDEVs, Pools, Datasets, Shares
 
29:06
FreeNAS Corral: VDEVs, Pools, Datasets FreeNAS® User Guide 9.10.2-U2: http://doc.freenas.org/9.10/freenas.html Slideshow explaining VDev, zpool, ZIL and L2ARC for noobs!: https://forums.freenas.org/index.php?threads/slideshow-explaining-vdev-zpool-zil-and-l2arc-for-noobs.7775/ FreeBSD Mastery: ZFS: https://www.michaelwlucas.com/os/fmzfs Becoming a ZFS Ninja: https://www.youtube.com/watch?v=6_K55Ira1Cs ZFS Primer: https://forums.freenas.org/index.php?threads/zfs-primer.38927/ ZFS Features and Terminology: https://www.freebsd.org/doc/handbook/zfs-term.html NEWS: Important announcement regarding FreeNAS Corral: https://forums.freenas.org/index.php?threads/important-announcement-regarding-freenas-corral.53502/ FreeNAS Corral Canned – Development Essentially Halted for Now: https://www.servethehome.com/freenas-corral-canned-development-essentially-halted-now/ Migrating from FreeNAS Corral to FreeNAS 9.10: https://forums.freenas.org/index.php?resources/migrating-from-freenas-corral-to-freenas-9-10.33/ Source Images: Trixie: http://theshadowstone.deviantart.com/art/Trixie-Lulamoon-471255758 Dataset: https://www.iconfinder.com/icons/1882649/disk_hard_hdd_raid_storage_icon#size=128 HDD: https://www.iconfinder.com/icons/1817897/hard_disk_hard_drive_hardware_hdd_storage_icon#size=128
Views: 1693 Derpy Networking
CCNA 200-125: PPP CHAP
 
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username R2 password derp ! interface Serial0/0/0 ip address 192.168.0.1 255.255.255.252 encapsulation ppp ppp authentication chap username R1 password derp ! interface Serial0/0/0 ip address 192.168.0.2 255.255.255.252 encapsulation ppp ppp authentication chap Derpy: https://givralix.deviantart.com/art/Derpy-Hooves-429911899
Views: 101 Derpy Networking
STP Port Roles: Scenario 2
 
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I know this is long but it's worth it. Sorry if my speech is broken. It's super late out and for some reason, I wanted to make this. ;) STP playlist: https://www.youtube.com/playlist?list=PLDzveA55I0_gLMwoYV2tXpuTuGetEYs6m Fluttershy: http://puppetkamon.deviantart.com/art/Angry-Fluttershy-389542037 Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps
Views: 634 Derpy Networking
STP Root ports with Hubs
 
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Find the Root Bridge 1. Find the root bridge with the lowest Bridge ID. (Bridge priority and MAC address) 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Note: 3-4 are only used if you have multiple links between two switches and if you tie with 1-2. Finding the Designated ports for LAN segments. 1. Find the switch that has the lowest cost to the root bridge. You do this by looking at the link between the switches. Which side has the lowest cost? Then that side of the link becomes the DP. 2. Which side of the link has the lowest BID 3. Lowest port priority 4. Lowest internal port number. Note: 3-4 are super rare for DPs. It's only if you have multiple links connected between two switches through a HUB! In this situation, you created a loop! This never happens in real networks. After you find the RPs and DPs all other ports become blocked. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps https://www.youtube.com/playlist?list=PLDzveA55I0_gLMwoYV2tXpuTuGetEYs6m
Views: 105 Derpy Networking
Bonus: Cisco UDLD
 
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Cisco UDLD: https://www.youtube.com/watch?v=OyHqeXY8P-g I'm reverse engineering the protocol by looking at the packet capture. Please forgive me if something is wrong. I gave it my best shot to understand it. mac access-list extended UDLD_BLOCK deny any host 0100.0ccc.cccc permit any any interface FastEthernet0/2 mac access-group UDLD_BLOCK in derpy.network/cisco/udld.pcapng https://dashiesparkle.deviantart.com/art/Vector-273-Coco-Pommel-2-563252760
Views: 113 Derpy Networking
CCNA 200-125: PPP PAP
 
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R1 username bestpony password always ! interface Serial0/0/0 ip address 192.168.0.1 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username derpy password secretmuffins R2 username derpy password secretmuffins ! interface Serial0/0/0 ip address 192.168.0.2 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username bestpony password always Derpy: https://givralix.deviantart.com/art/Derpy-Hooves-429911899
Views: 107 Derpy Networking
EIGRP over GRE
 
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You will learn GRE and how to share those networks with EIGRP. Fun! Those IP addresses are getting to me. I'm repeating some. Ha. Derpy: http://elppajack.deviantart.com/art/Derpy-Hooves-Scrunchy-Face-333589319 luna: http://proenix.deviantart.com/art/Sad-Luna-296053579 Twilight sparkle: http://jeatz-axl.deviantart.com/art/Twilight-Sparkle-Whaa-412896192
Views: 896 Derpy Networking
STP part 1
 
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Spanning tree protocol! How fun! Disclaimer: It may cause muffin cravings! And accuracy is not guaranteed, but I'll do my best! Find the Root Bridge 1. Find the root bridge with the lowest priority or MAC address. Sometimes called the Bridge ID. 2. All the active ports on the Root Bridge become designated ports. Find the Root ports (One RP per switch) 1. Lowest cost to Root Bridge. 2. Lowest neighbor Bridge ID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. Finding the Designated ports for LAN segments. 1. Between non-root switch segments, find the switch that has the lost cost to the root bridge. 2. Lowest BID 3. Lowest neighbor port priority 4. Lowest neighbor internal port number. STP Costs 1. 100 for 10Mbps 2. 19 for 100Mbps 3. 4 for 1Gbps 4. 2 for 10Gbps
Views: 324 Derpy Networking
IPv6 Crash Course:Overview
 
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Derpy: https://starshinecelestalis.deviantart.com/art/Derpy-Smiling-436503115
Views: 180 Derpy Networking
CCNA 200-125: SNMP v2c server
 
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CCNA 200-125: SNMP v2c server SnmpSet.exe -r:192.168.0.250 -v:"2c" -c:"DERP" -o:"1.3.6.1.2.1.2.2.1.7.10003" -val:2 -tp:int 3560 Switch OIDs: .1.3.6.1.4.1.9.3.6.6.0 Memory .1.3.6.1.2.1.47.1.1.1.1.13.1001 System Model .1.3.6.1.2.1.47.1.1.1.1.11.1001 BIOS Serial Number .1.3.6.1.2.1.47.1.1.1.1.9.1001 Firmware Revision .1.3.6.1.2.1.1.6.0 Location http://www.itninja.com/blog/view/snmp-oids-for-cisco-3560 PowerSNMP: http://powersnmp.com/snmp-free-manager.aspx Paessler SNMP Tester: https://www.paessler.com/tools/snmptester Syslog Watcher: https://syslogwatcher.com/cmd-tools/ Cisco SNMP Object Navigator: http://snmp.cloudapps.cisco.com/Support/SNMP/do/BrowseOID.do?local=en Derpy: http://images5.fanpop.com/image/photos/28700000/Derpy-my-little-pony-friendship-is-magic-28778362-766-800.jpg Computer Icon: https://www.iconfinder.com/icons/100125/computer_icon
Views: 827 Derpy Networking

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