On Jan 9, 2008 5:06 PM, Michel Servaes <michel at mcmc dot be> wrote:
> I have a generic pc, with 2 LAN & 1 WAN connection.
> LAN is my network
> LAN2 is my neighbour network
> When going to status: Interfaces, I have on a 2 day base the following
> transfers :
> WAN : 219,98MB/58.38MB
> LAN : 46,32MB/63,17MB
> LAN2 : 10,33MB/47,14MB
> When checking the upload on LAN + LAN2, it is somehwat in the
> neighbourhood of my WAN download
> But when checking against my WAN upload, it seems that this does not add
> up to my both LAN's.
It's a 32 bit counter, it rolls over at 4 GB, which is probably the
reason for the discrepancy.
> My firewall log shows a lot of ICMP's being blocked to 18.104.22.168 (which
> I believe is a broadcast of my ISP) - should I ignore this, or should I
> allow this broadcast into my firewall...
That's multicast, most likely routing protocols of your ISP. I
wouldn't worry about it and definitely wouldn't allow it (because that
would be pointless), you might want to put a non-logging rule on your
WAN blocking it so you don't get the log noise.