[LARTC] Multicast routing problem
Hi, I'm trying to route multicast between 2 LANs using a GRE tunnel. The setup is: B to C is a GRE tunnel running over PPPoE. B is the multicast router. A is on the same LAN as B. The same ethernet adapter is used for both the LAN and PPPoE connections. I've setup smcroute since I only need static routing. Multicasts sent from C (the remote machine) to B over the tunnel are properly routed by B and available over the LAN to A. However, multicast packets generated by A (on the LAN), while received at B, are not routed to over the tunnel to C. The multicast routes look fine, and I can see the input counters growing when I receive multicasts on the LAN. However tcpdump does not show any activity on the tunnel, the packets just seem to get dropped at B. Kernel 2.6.16. Any help appreciated. Regards, -- Raju -- Raj Mathur [EMAIL PROTECTED] http://kandalaya.org/ GPG: 78D4 FC67 367F 40E2 0DD5 0FEF C968 D0EF CC68 D17F It is the mind that moves ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
[LARTC] Multicast routing
How do the Multicast routers sniff IGMP/MLD messages from the network? I checked the XORP, pimd etc. Most of them just open a RAW socket with protocol set to IPPROTO_IGMP. But using this the router gets the packets addressed to 224.0.0.1 only. How does it receive IGMPv2 and IGMPv3 membership reports sent by other hosts? Thanks, Sachin ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
[LARTC]Multicast routing between two subnets
Hello. Im new to this list. Im trying to set up multicast routing between two networks: Internet ^ | Windows box | | UserModeLinux A - Colinux Router - UserModeLinux B running mrouter Im using a 2.6.8 kernel on Colinux with Multicast/Multicast routing support activated. The UMLs are supporting Multicast. Im trying to make A and B communicate over a Multicast address with the emcast utility. Mrouter on Colinux is receiving the membership report from A end B. Mrouter is also filling the tables: colinux:~# cat /proc/net/ip_mr_cache Group Origin Iif Pkts Bytes Wrong Oifs 080706E1 0114A8C0 2 3 117 0 1:1 080706E1 010AA8C0 1 4 123 0 2:1 ^ | Output Interfaces But nothing is forwarded: colinux:~# cat /proc/net/ip_mr_vif Interface BytesIn PktsIn BytesOut PktsOut Flags Local Remote 1 tap0 123 4 0 0 0 FE0AA8C0 2 tap1 117 3 0 0 0 FE14A8C0 ^ | Nothing Out I surely missed something but dont know what. I would be pleased if anybody could help... Thanks in advance, Yoann ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
[LARTC] Multicast routing with multiple routers problem
Hi, I have problem with multicast routing on my network. I tried mrouted and also pimd, but always same problem. When I set mrouted or pimd on one router, everything works fine, but when I start mrouted/pimd on another one, routing die. In moment when I start anorher mrouted/pimd /proc/net/ip_mr_cache is cleaned. My topology: gateway (no mrouted/pimd) | 192.168.0.0/24 | subnet+--- backbone switch-+ ||| ||| (192.168.0.1)(192.168.0.2) (192.168.0.3) router1streaming_machine router2 (192.168.1.1) (source of data) (192.168.2.1) | | 192.168.1.0/24| | 192.168.2.0/24 subnet subnetswitch switch | | | | | | | | | | clientsclients Backbone switch has igmp snooping, querying and mcast learning Any idea what could be wrong, or can anybody show mrouted.conf or pimd.conf for this ? Thanx for help. Roman ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] Multicast routing
Hello list, Not sure if I am asking the question in the correct list. I am a newbie trying to get multicast routing to work on my linux 2.4 kernel. I am using usc pimd code. I have pimd which sets up the route in the kernel [ /tmp]# ip mroute show (22.22.22.1, 224.0.1.20) Iif: eth2 Oifs: eth1 [ /tmp]# I can see data packets arriving on eth2 [/tmp]# tethereal -i eth2 Capturing on eth2 0.00 22.22.22.1 - 224.0.1.20 UDP Source port: 32770 Destination port: 12345 1.00 22.22.22.1 - 224.0.1.20 UDP Source port: 32770 Destination port: 12345 2.00 22.22.22.1 - 224.0.1.20 UDP Source port: 32770 Destination port: 12345 However, packets are not getting forwarded on eth1 [ /tmp]# cat /proc/net/ip_mr_cache GroupOrigin Iif PktsBytesWrong Oifs 140100E0 01161616 2 82847880 1:1 [EMAIL PROTECTED] /tmp]# [ /tmp]# cat /proc/sys/net/ipv4/ip_forward 1 Any suggestions on debugging the problem is greatly appreciated Thanks Meenakshi ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
