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Forum Discussion

Josh_Hildebran1's avatar
Josh_Hildebran1
Icon for Nimbostratus rankNimbostratus
Jul 13, 2006

Simple SNAT for external SMTP nodes via a VIP

I think I had this working at some point, but now I'm not entirely sure it ever did. I'm trying to make it so that external servers can use a VIP to hit a pool of external mail servers. When I sa...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jul 14, 2006
Hi,

 

 

I don't think you need a rule or a SNAT for this. By default, the VIP is going to respond back to the client from the virtual IP address. If you need the BIG-IP to replace the source address on connections from the BIG-IP to the node, then you could use SNAT automap.

 

 

The BIG-IP won't send any type of SMTP message back to the client. The node in the SMTP pool would need to do this.

 

 

I don't think this is an iRule issuue. If you think so, please post more info on why. If this is a VIP configuration issue, please contact support.

 

 

Thanks,

 

Aaron