CheckPoint Problem on DHCP

CheckPoint Problem on DHCP

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Subject Author Date
CheckPoint Problem on DHCP wesley.mks 07-07-2006
Posted by on July 7, 2006, 1:08 am
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Hi,

I have a problem on Checkpoint recently, all the DHCP client can't
access internet fully(just can access a few web site) thought
checkpoint. And i had check the log but havn't found any not accept in
there. So i had create a new configuration and input the rule again.
Every thing work prefectly again. But after a few days, this accident
was happened again. Every thing was worked over one year without any
problem. So can you tell me what is the problem?

Firewall : Checkpoint 4.1on Windows NT4 with SP6
DHCP Server : Windows NT4 with SP6

Thanks,

Wesley


Posted by flamer die.spam@hotmail.com on July 9, 2006, 8:37 pm
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Well I think something must have changed for it to stop working after a
week all by itself, so what your saying is they can access a websites
but not full internet access..well that could just be cached
somewhere..

what are you using for your default gateway? are your rulebase allowing
for the entire DHCP IP scope, set your DHCP server to give the same ip
to the same host where possible.

Have you recently run any software updates, are you running revision
checking? has a new database version been created (meaning the rulebase
has changed..)

if there arent any access logs in checkpoint then that means either the
packets are being dropped before then, or your last rule on the
firewall hasnt got the log option set, set log on all your rules then
check logs, perhaps an upper rule is misconfigured and denying the
traffic.

Flamer.

wesley.mks@gmail.com wrote:

> Hi,
>
> I have a problem on Checkpoint recently, all the DHCP client can't
> access internet fully(just can access a few web site) thought
> checkpoint. And i had check the log but havn't found any not accept in
> there. So i had create a new configuration and input the rule again.
> Every thing work prefectly again. But after a few days, this accident
> was happened again. Every thing was worked over one year without any
> problem. So can you tell me what is the problem?
>
> Firewall : Checkpoint 4.1on Windows NT4 with SP6
> DHCP Server : Windows NT4 with SP6
>
> Thanks,
>
> Wesley


Posted by Me on July 9, 2006, 9:42 pm
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Fo starters:

1. You're running a firewall on an ancient Windows OS

2. Your Windows OS has been unsupported and has had no patches for over a
year and a half.

3. Your Check Point version has not had any patches in a couple of years and
is unsupported. There are several known exploits to bypass it.

4. Your DHCP server is on NT 4 is well.

Dude, NT 4 was written for the threat environment of 1993.

Time to join the 21st century and get systems that can handle the threat
environmment of 2006.

JJ

> Firewall : Checkpoint 4.1on Windows NT4 with SP6
> DHCP Server : Windows NT4 with SP6



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