multicasting, iptables (netfilter) and routing
From: wim delvaux (wim.delvaux_at_chello.be)
Date: Mon, 05 Jan 2004 02:54:13 GMT
I have been trying to setup the following environment
I have a cable modem serving my local net to which my desktop
and laptop systems are connected. Both receive an address
from the cable modem and are able to access the internet directly.
On my desktop there is an Ipaq (LINUX too) connected over the
usb cradle using usbnet and hence entering my desktop as a separate
I have managed to set up that environment so that all systems can talk to
one another and that Masquerading occurs only when the Ipaq needs to
connect to the internet.
The problem I have is that i seem unable to configure multicasting
What I want is that the Ipaq is able to access multicasting services on
any devices (desktop, laptop and internet)
When I ping 220.127.116.11 on the desktop I only see the internet and my
desktop (not my laptop - which could be ok since it runs win-me and
this might not have multicasting enabled - nor the Ipaq). When I ping on
the Ipaq I only get response of the Ipaq but not from my desktop although
it is connected on the same USB-subnet.
I tried running Mrouted on the desktop machine but I think this is not
relevant because the Ipaq ping should at least have a response of the
Has anybody set up a multicasted firewall environment which I could use to