 | | | enabling multicast routing | enabling multicast routing 2005-03-16 - By Stephen Gardner
Back
On Wed, 16 Mar 2005, bob flynn wrote:
> I am looking to enable multicast routing on a firewall, which was originally
> built with RH E WS 3 U3.
Bob,
Multicast routing can get very complicated very quickly. Firstly
you'll need to know if your provider is using DVMRP (mostly deprecated),
PIM-DM (dense-mode) or PIM-SM (sparse-mode). PIM-SM is the most common and
you will likely need to know the IP address for your local rendez-vous
point (RP) which is the point in the network with which PIM transactions
are primarily made.
To avoid boring everyone here's a couple of ideas
Take a look at http://www.xorp.org/
The pimd project seems to be dead and XORP looks to be the best modern
alternative. You'll need to focus on the mfea4, igmp and pimsm4 section of
the configuration file (assuming you don't use IPv6). XORP is well
documented and has an active set of forums but if someone has practical
experience of using it (or something similar) they may well be able to
offer some in-depth advice.
It might also be worth taking a look at the following usenet thread. These
guys are using smcroute.
http://groups-beta.google.com/group/comp.os.linux.networking/browse_frm/thread
/cb7c54cd90d8628d/35390b839698da65
For reference the mc_forwarding values under /proc/sys/net are
apparently read-only and indicate if the kernel is actively performing
multicast routing (ie. if there are any multicast routes in the system
routing table), it's not a setting it's an indicator.
Good luck
Regards,
Stephen
References:
SMCroute: http://www.cschill.de/smcroute/
XORP: http://www.xorp.org/
--
Taroon-list mailing list
Taroon-list@(protected)
http://www.redhat.com/mailman/listinfo/taroon-list
Earn $52 per hosting referral at Lunarpages.
|
|
|