Got a very strange routing problem. Had a fault come in that a voice server was inreachable (10.102.6.2). A traceroute seemed to see 10.102.254.17 as the second hop and all subsequent hops as well! This address is the exit interface of a 3845 router (first hop was the WAN address of this router). 10.102.0.0/16 is forwarded to a firewall on the directly connected subnet 10.102.254.0/28.
Funny thing is that trace to the IP address 10.102.6.3 routes ok and tracing to 10.102.6.2 on the 3845 gives it's own ip address as the first hop!
Very odd and am currently suspecting an IOS fault. Change control is a nightmare so am exhausting all other options first.
3845#sh ip arp | in 10.102.254.18
Internet 10.102.254.18 203 0023.336b.0000 ARPA GigabitEthernet0/1.16
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...