We recently migrated our edge routers to 2 seperate BGP connections to 2 seperate ISP's. Our routers are running firewall feature set.
While we were going throught the issues with the ISP's we had an IP Inspect ftp statement on the inside interface. Once we finally got the second ISP working we noticed our ftp sessions were failing. I move the inspect statement to the new ISP router because it was our preferred path and the ftp started working again. I really need to have the inspect statements on each inside interface but when I add it the original ISP all ftp stops working.
I can provide more detail regarding our routers if need be.
Thanks to any/all that may add input.