RE: Wol Magic Packets

["Rob Sterenborg" <rob@sterenborg.info>]

Would you please be so kind to keep this discussion on the list by replying to
it, not to me directly.
Thanks.



On Thu, August 24, 2006 14:23, claudio987\@libero\.it wrote:
>> Yes. Well, I also received an email from Sietske van Zanen who thought
>> more thoroughly than I did, but he hit the wrong butten and it was not sent
>> to the list. This was his answer and I have to agree with him:
>>
>>
>> [quote]
>> I do not see what use it is, to block this on your firewall. WoL is a
>> broadcast, hence it will already never traverse a firewall if it's configured
>> correctly. On the local LAN segment they will never pass a firewall before
>> reaching a LAN station. That's the whole idea of broadcasting.
>>
>> The best thing to do is disable WoL on the workstations.
>>
>>
>> -Sietse
>> [/quote]
>>
>> Gr,
>> Rob
>>
> how can I block wol packets? I must disable broadcasting? In what way? I wont
> to use wol only in my lan. I have a linux box router: 192.168.0.1 and 4 pc on
> lan 192.168.0.2 192.168.0.3 192.168.0.4 192.168.0.5. I must disable it with
> iptables on 192.168.0.1 (router). Thanks

Did you read Sietse's comment?
- WOL is a broadcast and broadcasts typically *do not pass* a router, in this
case your Linux firewall.
- If the WOL packet is coming from your LAN you *cannot* block it using your
Linux firewall, because the packets *do not pass through* it.

Disable the WOL feature on your clients, as Sietse suggested.


Gr,
Rob