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Nacho_de_Aguina's avatar
Nacho_de_Aguina
Icon for Nimbostratus rankNimbostratus
Jan 19, 2007

SNAT Pass the source IP to the sever

Hello:     I have a Virtual Server, of SMTP protocol.   The problem is that in the log mail servers i see that all the connections are from the VS, and i cannot see the IP of the client.   ...
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Deb_Allen_18's avatar
Deb_Allen_18
Historic F5 Account
Jan 19, 2007
SNAT replaces the client sourceIP.

 

 

X-Forwarded-For is an HTTP header than can be inserted in an HTTP request, but doesn't apply to SMTP traffic.

 

 

The best solution is to set the LTM floating self-IP on the mailserver-facing VLAN as the default gateway for the mailservers and disable the SNAT for the SMTP virtual server.

 

 

HTH

 

/deb