Re: Packets lost

["Gáspár Lajos" <swifty@freemail.hu>]

Vasantha Kumar Puttappa írta:
> Hi All,
>  Please somebody guide me here.
>
> I am tracking all udp packets (in particular, SIP based UDP packets)that
> goes through iptables using LOG mechanism.
> I use the following command,
>     iptables -A INPUT -p udp -j LOG --log-level-4.
>   
Maybe you also need the following rule:
iptables -A FORWARD -p udp -j LOG --log-level-4
> In addition, i also run 'Ethereal' to make sure that all the packets
> captured goes through iptables as well.
>   
Ethereal sees the packets BEFORE iptables.
So maybe some of your rules drops the packet.
> Here is the problem,
>   Sometimes, a random number of packets doesnot go through IPtables and
> they are completely lost. Although, I can see those packets in Ethereal.
>
>  I tried increasing the backlog queue and ip_queue length, but still no use.
>  I am using Netgear's wireless network card (WG511, made in taiwan).
>
>
>  Somebody please guide me. How do I findout the cause of this.
>
>  Regards
>  Vasanth
>   
Swifty