Als je ik kijk op
http://ipcop.hopto.org/ wordt het probleem in de FAQ genoemd:
· My ISP is filling my logs with IGMP or PIM packets. How can I stop logging those?
Log into the IPCop console as root and edit a file named /etc/rc.d/rc.firewall.up . In that file, add these two lines to permanenly drop IGMP and PIM packets.
For a modem connection to the ISP...
ipchains -A input -i ppp0 -p igmp -j REJECT
ipchains -A input -i ppp0 -p pim -j REJECT
For an ethernet connection to the ISP...
ipchains -A input -i eth1 -p igmp -j REJECT
ipchains -A input -i eth1 -p pim -j REJECT
You can add these lines just before the comment:
# all ICMP on ppp too
Of course, directly editing the firewall rules is risky business and is done at your own peril. If this breaks your firewall, you get to keep both parts.
Quidquid latine dictum sit, altum sonatur (Whatever is said in Latin sounds profound).