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Go Back   CPUG: The Check Point User Group > Check Point Firewall-1/VPN-1 And Related Products > NAT (Network Address Translation)
Reload this Page disabled static nat still seems to be working
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Old 2007-03-05
draegloth draegloth is offline
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Default disabled static nat still seems to be working
Hi guys,

I have a star vpn topology and the end points are vpn edge boxes with running firmware version of 6.5.43.

I have disabled NAT inside the VPN community.

I've a sip proxy on the center site. I've been natted the machine on an internet IP for some testing, after testing I've disabled that nat rule.

The problem is, when I capture sip packets i saw that the IP address on the sip packets form egde to center contains the lokal IP address of the sip proxy. However on the return packets I saw the natted IP address when I making tests. I've checked the objects_5.0.c file but I saw nothing related to this IP addr.

Do you have any idea how to clear this natted IP address?

Regards...
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Old 2007-03-05
melipla melipla is offline
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Default Re: disabled static nat still seems to be working
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Originally Posted by draegloth View Post
Do you have any idea how to clear this natted IP address?
The R60 HFA 05 release notes give a pretty clear picture of what is (and wasn't) supported for NAT regarding SIP. However I'm not sure how this translates into Edge versions.
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Old 2007-03-05
draegloth draegloth is offline
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Default Re: disabled static nat still seems to be working
Sorry guys it seems that i forget to give the version on my center site. The center site version is R61 HFA01.
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Old 2007-03-05
MarioL MarioL is offline
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Default Re: disabled static nat still seems to be working
You probably haven't compiled the policy for the Edge's, so they are still fetching a policy with the NAT rule active.
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Old 2007-03-05
RayPesek RayPesek is offline
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Default Re: disabled static nat still seems to be working
Seems to me that NAT is not cleared when the rule is removed and a policy is pushed. I think you have to wait a bit for it to expire.

If you waited more than an hour, this probably is not it.

Ray
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Old 2007-03-07
draegloth draegloth is offline
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Default Re: disabled static nat still seems to be working
I waited more than 3 days however the result still the same. I think that this is a bug for sip.
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Old 2007-03-07
RayPesek RayPesek is offline
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Default Re: disabled static nat still seems to be working
Yeeesss, I think three days is more than enough. :-)

Ray
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Old 2007-03-08
melipla melipla is offline
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Default Re: disabled static nat still seems to be working
Quote:
Originally Posted by draegloth View Post
I waited more than 3 days however the result still the same. I think that this is a bug for sip.
Most likely...

By chance, if you log into the edge device and go to Setup -> Tools -> Diagnostics, do you see the NAT rule at the bottom of the page?

Also, which edge firmware are you using?
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