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Forum Discussion

Mathewjose777_5's avatar
Mathewjose777_5
Icon for Nimbostratus rankNimbostratus
Mar 02, 2009

Problem connecting internal - external vlans

Hi Gurus,   We have a LTM 3600 (9.4.x) and 3 web servers.     The member webservers have 2 sets of IP with different subnets   (10.10.1.x / 255.0.0.0) & (150.10.20.x/255.255.0.0) ...
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Mar 02, 2009
Is the client IP address on the same subnet as the member servers? If so, you'll need to use SNAT. If not, try capturing a tcpdump on LTM to see what's happening. You can use syntax like this to write a tcpdump to a binary file:

 

 

tcpdump -ni 0.0 -s 0 -w /var/tmp/test.dmp host VIP_IP or host SERVER_IP

 

 

To write the packets out to the screen, you can leave off the -w /var/tmp/test.dmp option.

 

 

If you need help analyzing the tcpdump you can check SOL411 (Click here) or SOL1893 (Click here) or open a case with F5 Support (Click here).

 

 

Aaron