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John_131301
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Aug 07, 2013

Virtual Server not Responding to clients on different subnet

We are in a One -Arm Network Configuration. Created a standard virtual server to load balance a web site. Virtual server will respond to all request then periodically stop responding to client reques...
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John_131301's avatar
John_131301
Icon for Nimbostratus rankNimbostratus
Aug 09, 2013

If I run the tcpdump from my desktop going to the IP of the virtual server this is what I get (changed IP's to protect the inncoent)

 

 

listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes

 

10:49:50.305248 IP 10.1.1.180.42486 > 10.1.2.220.80: Flags [S], seq 2453712361, win 14600, options [mss 1460,sackOK,TS val 1956707925 ecr 0,nop,wscale 7], length 0

 

10:49:50.306024 IP 10.1.2.220.80 > 128.244.47.180.42486: Flags [R.], seq 1607238968, ack 2453712362, win 0, length 0

 

10:49:50.308312 IP 10.1.1.180.42487 > 10.1.2.220.80: Flags [S], seq 3272362573, win 14600, options [mss 1460,sackOK,TS val 1956707928 ecr 0,nop,wscale 7], length 0

 

10:49:50.309435 IP10.1.2.80 >10.1.1.180.42487: Flags [R.], seq 1096721166, ack 3272362574, win 0, length 0

 

 

If I run tcpdump on the F5 using IP of the virtual server I get nothing returned when trying to connect form my desktop. If I try to connect from a system on same subnet everything works as expected.