Forum Discussion

spalande's avatar
spalande
Icon for Nacreous rankNacreous
Jul 08, 2021

Auto Last Hop Feature

Does auto last hop feature works for the traffic coming to servers for which F5 is the gateway? e.g. F5 is the gateway for the server x.x.x.x and server admin wants to access the server, so the resp...
application delivery
BIG-IP
LTM
JRahm's avatar
JRahm
Icon for Admin rankAdmin
Jul 08, 2021

It doesn't matter if the BIG-IP is the gateway for server traffic or not. If traffic from the server is returned through the BIG-IP via route, snat or nat, and auto-last-hop is enabled, the BIG-IP will send that traffic back where it came from, regardless of what the routing table says. This can be problematic in DMZs, so understanding the feature is important.