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New Member

DNS fixup not working on PIX 501 6.3

Hi all,

I am running a PIX 501 FW and everything is fine except for one thing. We have a DNS server on the inside and according to the docs the dns fixup setting shold translate A records automatically so they have "outside" IP adresses when viewed from the outside although they are actually configured on the DNS server with "inside" IP's.

However it doesn't work. If I eg. query the DNS server for ns.my.com it returns 10.195.0.1 and not x.x.x.x as I would have expected.

Is my configuration wrong or doesn't that work at all?

Excerpt of config:

fixup protocol dns maximum-length 2048

static (inside,outside) x.x.x.x 10.195.0.1 netmask 255.255.255.255 0 0

1 ACCEPTED SOLUTION

Accepted Solutions
Silver

Re: DNS fixup not working on PIX 501 6.3

Hi,

i dont think this is what dns fixup is for.

try this

static (inside,outside) x.x.x.x 10.195.0.1 netmask 255.255.255.255 dns

2 REPLIES
Silver

Re: DNS fixup not working on PIX 501 6.3

Hi,

i dont think this is what dns fixup is for.

try this

static (inside,outside) x.x.x.x 10.195.0.1 netmask 255.255.255.255 dns

New Member

Re: DNS fixup not working on PIX 501 6.3

Ah yes, that was exactly what was needed. I thought I had read the docs, but not enough apparently - I had missed the "dns" option on static.

Thank you very much!

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