Re: firewalls and MTU - identifying problem if any

Sascha Reißner on 23/10/10 12:02, wrote:
> Am Freitag, den 22.10.2010, 23:38 +0100 schrieb Adam Hardy:
>>>> I have a small LAN at home connected up to the net via a DSL modem on a gateway
>>>> machine running lenny and iptables.
>>>>
>>>> I have a problem with some software running on a windows machine on the LAN
>>>> where the company who wrote the sofware say that there must be something wrong
>>>> with my internet connection, but can't help any further.
>>> You can set a log-target in your firewall for these windows mashine, so
>>> you can see what connection the mashine want to do.
>>> I think on
>>>
>>> iptables -A FORWARD -s <windows-IP> -o <DSL-device> \
>>> -m state --state NEW -j LOG --log-prefix 'WIN-LOG: '
>> I figured I could do that but the amount of traffic going through from this
>> software is huge. Is there some sort of app out there that takes iptables output
>> and allows you to sort & filter it?
>
> This rule logs only the first paket from new conections.
> So i think its log not to many.
> But you can test wiresharke for sniffing.

OK I'll take a look at wiresharke. Thanks
Adam

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