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
