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RV345 port forwarding not working for re-entrant traffic

mmoerman
Level 1
Level 1

Hi,

 

I seem to run in a bit of a problem with re-entrant traffic on the RV345. 

My setup is fairly simple some VLANs and the latest firmware 1.0.03.15. 

I hav a mail server behind the RV345 on one of the VLANs. I have port address translation setup to route mail traffic to that server. I have a static IP.

When I connect externally from the internet to my mailserver everything works fine.

When I am inside my network and try to connect to the mailserver it doesn't work.

The DNS entry that I use bth internally and externally are the same entry. So it seems that the router is having an issue doing this.

 

Internal network -> router -> edge of router -> router (port translation) -> e-mail server.

 

Anyone have any ideas? Thanks for the help.

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