nanog mailing list archives
Re: Multicast over GRE between Linux server and Cisco Router
From: PC <paul4004 () gmail com>
Date: Mon, 21 Jan 2013 22:27:13 -0700
From my experience, it seems most Linux multicast development has stalled
significantly in recent years. None the less, look for something called "smcroute". You should be able to use this to manually peg up a route and generate the join. Also take a look at the output of netstat -n -g to see the join. igmpproxy is also good if this is a stub network and you're trying to proxy joins. Let me know what ends up working for you. I've fought this one once already. I never did like the results, but I ended up using the igmp proxy method. On Fri, Jan 18, 2013 at 8:07 PM, Tom Ammon <thomasammon () gmail com> wrote:
IGMP packets are sent with TTL=1. Is the tunnel interface on the router enabled for PIM? Tom On Fri, Jan 11, 2013 at 5:11 AM, Brian Christopher Raaen < mailing-lists () brianraaen com> wrote:Just a quick note. I do have multicast enabled on the server gre1 interface. A tshark capture shows the igmp group queries from the router and the igmp join reply from the server. On Wed, Jan 9, 2013 at 10:51 AM, Brian Christopher Raaen < mailing-lists () brianraaen com> wrote:I am trying to set up multicast between a Linux server and Router using GRE. The GRE tunnel is up fine and I can see traffic go across it, buttherouter is not indicating it is receiving the IGMP joins that the serverissending. I have identical setting with another server attached to fastethernet0/1 and it is joined to the group fine, but I am not abletoget the server to link to the router via GRE interface. Note that Ihaveanother server behind another router where the two routers do GRE andPIMand that on is working fine. Is there some reason that IGMP joinswouldnot work across the GRE link, but another router using PIM would? -- Brian Christopher Raaen Network Architect Zcorum-- Brian Christopher Raaen Network Architect Zcorum-- ----------------------------------------------------------------------------- Tom Ammon Network Engineer M: (801) 674-9273 tom () tomsbox net -----------------------------------------------------------------------------
Current thread:
- Multicast over GRE between Linux server and Cisco Router Brian Christopher Raaen (Jan 09)
- Re: Multicast over GRE between Linux server and Cisco Router John Neiberger (Jan 09)
- Re: Multicast over GRE between Linux server and Cisco Router Brian Christopher Raaen (Jan 11)
- Re: Multicast over GRE between Linux server and Cisco Router Tom Ammon (Jan 20)
- Re: Multicast over GRE between Linux server and Cisco Router PC (Jan 21)
- Re: Multicast over GRE between Linux server and Cisco Router Tom Ammon (Jan 20)