Forwarding IP VS not returning packets
Hi all,
I apologize for posting what has probably been asked before, but my search-fu seems to be completely failing me at the moment.
I'm trying to set up an F5 LTM (11.3) as a gateway for a particular subnet (172.16.88.224/28). The external switch/router has a static route pointing this network to the external address of the F5 cluster (128.6.31.124). The F5, in turn, has a forwarding IP virtual_server setup for the network, allowing all traffic in. (The purpose is to be able to reach hosts on that network directly via SSH or RDP.) However, I cannot get it working right. According to tcpdump, the packets are being received on the internal network interface of the F5, and being passed along to the client. The client responses are coming back to the F5, as expected (the servers all have the proper gateway, 172.16.88.225, setup. However, those return packets are *NOT* making it back through the F5 (ie. from the internal interface to the external interface). I'm assuming I have something configured wrong somewhere, but I can't see what.
I've attached stripped-down versions of bigip.conf and bigip_base.conf with the relevant network and virtual sever information.
If anyone can help me, I'd really appreciate it; I've been fighting this for several days, and haven't found any documentation, advice, or forum posts that address precisely my problem.
Thanks.