Outside NAT / Port Translation assistance needed

Answered Question
Feb 5th, 2008

The picture explains it all really...

I'm having trouble configuring two public external IP addresses (1.1.1.2 and 1.1.1.3) that point back to the same host but different ports (443 for the former and 8443 for the latter).

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Correct Answer by trustcisco about 8 years 11 months ago

Assuming that you have your web servers in the DMZ:

a)static (DMZ,outside) tcp 1.1.1.2 https 2.2.2.2 https netmask 255.255.255.255

b)access-list HTTPS-OUT extended permit tcp any host 1.1.1.2 eq https

c)access-group HTTPS-OUT in interface outside

For the second entry you may need to do this.

a)static (DMZ,outside) tcp 1.1.1.3 https 2.2.2.2 8443 netmask 255.255.255.255

b)access-list HTTPS-OUT extended permit tcp any host 1.1.1.3 eq https

c)access-group HTTPS-OUT in interface outside

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Correct Answer
trustcisco Wed, 02/06/2008 - 02:19

Assuming that you have your web servers in the DMZ:

a)static (DMZ,outside) tcp 1.1.1.2 https 2.2.2.2 https netmask 255.255.255.255

b)access-list HTTPS-OUT extended permit tcp any host 1.1.1.2 eq https

c)access-group HTTPS-OUT in interface outside

For the second entry you may need to do this.

a)static (DMZ,outside) tcp 1.1.1.3 https 2.2.2.2 8443 netmask 255.255.255.255

b)access-list HTTPS-OUT extended permit tcp any host 1.1.1.3 eq https

c)access-group HTTPS-OUT in interface outside

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