Folks, hoping someone can help me here. I have 2 sites that are connected with a fiber point-to-point WAN circuit. Each site has its own ISP/Internet connection. SiteA is the one I need assistance with. Each site has a single dual-SUP Cisco L3 core and a firewall. The core connects both to the WAN and the firewall, and the firewall connects to the ISP (see diagram below).
Basically, we had an ISP outage at SiteA where the ISP equipment that connects to the firewall lost power. I have set up dual-static floating routes on both the Cisco and the firewall to prefer the local ISPA first, and if that is not available, fail over to the WAN path to site B for backup internet.
When the power was lost to the ISP equipment, the firewall appeared to correct fail to the backup default route which points back at the Cisco L3 core to get to the WAN. However, the core failover route did not seem to want to fail to the WAN path and kept routing default traffic to the local firewall. When we powered off the firewall completely to test, only then did the Cisco core default route fail to the WAN to Site B.
Here's the diagram (I apologize for the crudeness of it) and the configs are included. Any help or guidance here would be appreciated.
