Forum Discussion
johnkrum_45755
Nimbostratus
NimbostratusForwarding virtual server stops after 15 sec
I was planning on setting up remote administration to servers physical address through the F5. I set up a Forwarding virtual server through the GUI (running latest 10 code) type = Host address is the physical address of the server 10.129.38.16. Service port 0, *all ports. Forwarding IP, TCP, All Vlans. I had a ping going to that address and once I hit update I received replys and then I remote desktoped to it successfully. Then after about 15 seconds my pings stopped and my session hung. I was able to recreate this by building the same setup in a different partition. Has anyone run into this before?
Thanks
- The_BhattmanThis doesn't sound normal at all. I would suggest you contact F5 support to see if you encountering a bug.
CB 
hoolioCirrostratus
Maybe it's an ARP timeout expiring? A tcpdump on the client, LTM and server would help isolate this.
Aaron
johnkrum_45755I did open a case yesterday. Just thought I would throw it out there to see if anyone had seen this before. It is odd so I am guessing I just missed something. Thanks
mniemiec_63167BTW..I had something similar with a forwarding VS. The only way I was able to solve it was to change the TCP profile to include the "allow loose connections" and also set the idle timeout to infinite. Honestly F5 TAC did not know what the problem was.- hoolioIf you configure an indefinite timeout, LTM would never reap the connections itself. So you open yourself to a DOS attack if clients open a lot of TCP connections and neither the client or server closes them.
Aaron
