In a previous blog I configured and HSRP pair using an entirely IPv6-oriented topology. I demonstrated the lightning quick failover that can be achieved with carefully crafted timers. However, a careful reader might have noticed that I didn’t consider the path BACK to my source of origin in my topology. So let’s address that today. … Continue reading Using Cisco’s EEM for path selection in IPv6 networks
Tag Archives: default route
How to configure static routing in IPv6 on Cisco Routers
Imagine you are standing on the shore of a vast ocean – its far side not visible in the distance. The right and left edges recede into the fringes of your vision and disappear over the horizon. The water is inky black, so dark you can’t see even the pebbles under the surface even at … Continue reading How to configure static routing in IPv6 on Cisco Routers
GNS3 and IP SLA with default route tracking
As I have mentioned before, I am a big fan of GNS3. I also said that I would be posting GNS3 labs from time to time with an eye toward gaining skill in the CCNA R&S arena, as well as the CCNP track. If you don’t have GNS3, go to the The GNS3 download page … Continue reading GNS3 and IP SLA with default route tracking
Troubleshooting DHCP server pools and DHCP clients on Cisco routers
Have you ever encountered a situation where you have configured a Cisco router as your DHCP server, you think you have followed all the steps, and yet the downstream devices don’t seem to be cooperating? I have built a scenario which I hope will demonstrate some of the pitfalls and gotchas that can interfere with … Continue reading Troubleshooting DHCP server pools and DHCP clients on Cisco routers