Forum Discussion

swtbeer's avatar
swtbeer
Icon for Nimbostratus rankNimbostratus
Mar 09, 2015

NAT (not SNAT) not preserving client source port

Hello ,   recently we've migrated our bigip-3600 to a new bigip400 platform. Everithing is working correctly except NATs.   Something has changed in the way ltm work with NATs.   With vers...
application delivery
LTM
management
swtbeer's avatar
swtbeer
Icon for Nimbostratus rankNimbostratus
Mar 09, 2015

Thanks for your answer nitass.

 

do you know how can i "simulate" a NAT using a virtual server?

 

Regards Javi

 

  • StephanManthey's avatar
    StephanManthey
    Icon for Nacreous rankNacreous
    Mar 09, 2015
    Hi Javi, it depends, how you are using it: In case of inbound only traffic only, a virtual server (PerformanceL4, all protocols) with a single member pool (both configured for port 0) will handle it. In case of outbound traffic a wildcard network virtual server (ForwardingIP) configured for port 0 with a SNATpool containing the NAT address will handle the traffic. As with your current NAT configuration network routes will be required to reach non-locally attached targets. For bi-directional traffic you will need both configuration elements. Thanks, Stephan