Forum Discussion
Kai_Wilke
Apr 03, 2019MVP
Hi abdel,
this is most likely a asymetric routing issue, which is by design if you don't have any Source NATs in place.
Request:
ServerA -> (SRC_IP=A -> DST_IP=X) -> F5 -> (SRC_IP=A -> DST_IP=A) -> ServerA
Response:
ServerA -> (SRC_IP=A -> DST_IP=A) -> ServerA
Since ServerA has never created a connection to itself, the connection will simply break.
The solution would be to enable SNAT globally on the Virtual Server or via an iRule if the SRC_IP is matching certain subnets (those which would otherwise experience asymetric routing issues).
Cheers, Kai