Multiple Ports NAT on 1 server

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I have 2 websites on a server, port 80 and 81. There are 2 external IPs to assign 1 for each website. I have the following configuration but doesn't seem to work for the port 81 website.

static (dmz,outside) tcp x.x.x.5 80 10.8.10.17 80 netmask 255.255.255.255

static (dmz,outside) tcp x.x.x.6 80 10.8.10.17 81 netmask 255.255.255.255

when accessing the site x.x.x.5 site works perfectly fine but when I try hitting x.x.x.6 page doesn't load. I have to actually specify the port on the browser for it to load (http://x.x.x.6:81). Is there a configuration that would make it so that I don't have to specify the port?

[paddyxdoyle]

Sounds a bit odd, what are you seeing in the logs when you try to connect to x.x.x.6 ?

[scoclayton]

This doesn't make sense. The only translation you have specified in the post above for x.x.x.6 is for port 80. Therefore, you should not be able to hit x.x.x.6 on port 81 from outside the PIX. Can we see the rest of the config? The above config should work fine if that is all you have configured.

Scott