Subject: HELP on Multicast
To: None <tech-net@NetBSD.org>
From: Alexandre Almeida <ale.almeida@mail.telepac.pt>
List: tech-net
Date: 11/30/2006 15:17:54
Hello...

I think that I need to work with multicast, to enable RIP (qaugga) and a 
speedtouch router, but I dont' t understand  why is MULTICAST enable on 
interfaces and netstat -g don't show them.
The speedtouch receives the routes from netbsd, but the routes from the 
speedtouth don't.

# netstat -gn

Virtual Interface Table is empty

Multicast Forwarding Cache is empty

mroute6pr: symbol not in namelist
# ifconfig -a
ex0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        capabilities=7<IP4CSUM,TCP4CSUM,UDP4CSUM>
        enabled=0
        address: 00:01:02:d9:b9:c3
        media: Ethernet autoselect (100baseTX full-duplex)
        status: active
        inet 82.155.156.15 netmask 0xff000000 broadcast 82.255.255.255
ex1: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        capabilities=7<IP4CSUM,TCP4CSUM,UDP4CSUM>
        enabled=0
        address: 00:10:5a:42:7e:20
        media: Ethernet 10baseT
        status: active
        inet 10.0.1.202 netmask 0xffffff00 broadcast 10.0.1.255
ep0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        address: 00:60:97:32:34:68
        media: Ethernet 10baseT
lo0: flags=8009<UP,LOOPBACK,MULTICAST> mtu 33192
        inet 127.0.0.1 netmask 0xff000000
        inet alias 203.168.1.0 netmask 0xffffff00
gre0: flags=a051<UP,POINTOPOINT,RUNNING,LINK1,MULTICAST> mtu 1476
        tunnel inet 82.155.147.191 --> 82.155.246.202
        inet 10.0.1.203 -> 192.168.1.103 netmask 0xff000000

# netstat -ran
Routing tables

Internet:
Destination        Gateway            Flags     Refs     Use    Mtu  
Interface
default            10.0.1.254         UGS         2    12215      -  ex1
10.0.1/24          link#2             UC          1        0      -  ex1
10.0.1.254         00:0e:50:6b:cc:78  UHLc        1      462      -  ex1
82/8               link#1             UC         24        0      -  ex0
82.155.156.15      127.0.0.1          UGHS        0        0  33192  lo0
127/8              127.0.0.1          UGRS        0        0  33192  lo0
127.0.0.1          127.0.0.1          UH          5      116  33192  lo0
192.168.1/24       10.0.1.203         US          0        0      -  gre0
192.168.1.103      10.0.1.203         UH          0        0      -  gre0
203.168.1.0        203.168.1.0        UH          0        0  33192  lo0

I think that a route like 224.0.0.9 should exist, but I' really don't 
understand Multicast
Also my gre tunnel don't work, but I think it's a limitation from my 
speedtouth router, but gif tunnel work well.
Can some one give me any direction on multicast.
Thanks