NAT data direction

[Louis Loizides 0]

I have an Allen Bradley 9300-ENA NAT with the attached config.

The public IPs are 172.31.x.x. The private IPs are 192.168.1.x.

I have a SAMBA share on the public network at 172.31.0.99 that I want to use for backups of one of the two PCs on the private network - 192.168.1.99 and 192.168.1.109. The SAMBA share has a private IP of 192.168.1.210.

I have the gateway on each of those PCs set to the NAT's private address (192.168.1.19).

If I try to ping or access the two private PCs using their public IPs I get through ok.

If I try to do this in the reverse direction - reach the SAMBA share by navigating to 192.168.1.210 - it doesn't work. I can't ping it either.

Does the NAT only work in one direction? If so is there a way to get it to work in both?

[ScottC 8]

I don't think you need to add the SAMBA share to the private network. You should be able to access it from the private network by navigating to 172.31.0.99 directly.

There's a pretty good 9300-ENA Introduction presentation attached to Knowledgebase article 502161.