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AhmedMS's avatar
AhmedMS
Icon for Altostratus rankAltostratus
Feb 24, 2023

F5 LTM SNAT features Question

Hello Dears, Could you please advise about the point of SNAT (AutoMAP); When should I enable it? I mean this bit of information that the server has GW path to router instead of having a next hop to ...
application delivery
AhmedMS's avatar
AhmedMS
Icon for Altostratus rankAltostratus

Dears,

Thanks alot for your answers. You made it clear, much appreciated. 
--
So, is it doesn't make a sense to have mixed setup like that. Right?
Regarding the point that an App faced an issue of connection reset, but when automap got enabled, it worked fine!! However, there are some other Apps that work with no SNAT at all. 

Thanks,

Mike757's avatar
Mike757
Icon for MVP rankMVP
Feb 25, 2023

Hi AhmedMS ,

I don't think it makes sense to have a mixed scenario (SNAT / no SNAT) when *all* routing conditions are equal.

Be aware that servers may be connected to multiple networks and their default gateway might not be what you expect. SNAT may be needed in such conditions.

If you want to clear your SNAT configuration, confirm first the routing table of the servers where you are sending traffic to. That way you can understand what path will the response traffic take.

/Mike