HTTP requests to internet web server through Link Controller fail with packet resets
Hello,
I have a client that is unable to access an external web site when connecting through a Link Controller. I've narrowed the connectivity issue down to the the Link Controller and have taken packet captures on the LC and client (connected directly behind the LC as well as in front of the LC). The site works fine when connecting to it at any point, except from behind the LC. The Link Controller is setup in an active/passive pair running 11.5.1 Build 5.0.147 HF5 with a default forwarding outbound rule configured (fastl4 with automap) and two internet links. No other complaints connecting to other remote web sites, just this specific one. Sifting through the packet captures, the only thing that stands out on the non-working captures are several TCP retransmissions to the remote server and finally a RST, which is coming from the LC as best as I can tell. The RST packet indicates "/forwarding_outbound PFlow expired (sweeper idle timeout)". I've tried an iRule to bind the outbound requests to the site to one internet link but with no luck. I can attach/upload/screenshot any captures or other info if anyone is interested but this one has me really stumped and I'm running out of ideas and leads to seek or try. Any guidance and help with this issue is greatly appreciated!