I have 5200 configured with a single external interface.
I am trying to configure ISP Redundancy and would prefer to not have to configure a second external interface.
I am wondering if any one has successfully configured this as from my reading it doesn't appear to be a supported option.
What I am attempting is as follows:
|---------- x.x.x.30 ---- Router to primary ISP ----- y.y.y.1 ---------y.y.y.2 ---- Primary ISP router
5200 ---- x.x.x.1 ----------|
|---------x.x.x.40 ---- Router to secondary ISP
ISP Redundancy set as Primary/Backup
Primary ISP has next hop set as x.x.x.30 - advanced configured to ping y.y.y.2
Backup ISP has next hop set as x.x.x.40
The ISP link table shows the correct status of OK for both ISPs.
But when I fail the Primary link the default gateway on the 5200 is erased and not reset. When I check the web gui it is just not there.