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Can you create 2 statics to the same internal IP?

bcorrothers
Level 1
Level 1

Question: Will the later versions of PIX Firewall (6.x) allow you to map 2 statics (outside) to the same internal IP address? In other words:

static (inside,outside) 216.55.5.55 -> 192.168.1.2

static (inside,outside) 192.168.1.2 -> 192.168.1.2

I'm running a PIX 515 with PIX Firewall ver. 5.2(1) and trying to enter the second static will error with "That address already statically translated!"

?

2 Replies 2

Harold Ritter
Spotlight
Spotlight

The issue is that the static natting is bidirectional. If it allowed a second entry, which one would the system use in the outside to inside direction.

Hope this helps,

Regards,
Harold Ritter, CCIE #4168 (EI, SP)

It needs to use both. Traffic will be coming from outside to inside from both 216.x.x.x and from 192.x.x.x so the PIX needs to answer for both and xlate both to the same internal IP (192.168.1.2).