Broadcasts not broadcasting?

[James A. Crippen]

On Thu, 28 Dec 2000, James A. Crippen wrote:

I didn't get any conclusive replies to this problem which is still
plaguing me so I'm reposting it.  I'd also like to note the messages from
my syslog below this included message.

> I'm using bird 1.0.4 on an Intel Linux box (homemade distro).  I've
> configured bird to do RIP broadcast.  I then plugged the system into my
> local network and into a separate network and did the same with my desktop
> system.  I configured bird to dump lots of debug info to the syslog, and I
> see it say that it broadcasts its routing table to both eth0 and eth1, but
> watching either network shows me absolutely no traffic from either
> interface.  I pinged back and forth to be sure, and I can see the pings
> and the associated ARP traffic quite clearly, but no RIP broadcasts at
> all.
> 
> The configuration is as simple as possible.  From what I can tell from the
> manual I've got everything necessary to make RIP run, but it doesn't want
> to share its routes with anyone.
> 
> Any ideas about what might be malfunctioning?
> 
> Below is the configuration file I'm using.
> 
> ---8<--- cut here ---8<---
> 
> log syslog all;
> 
> debug protocols all;
> 
> protocol direct {
>   interface "*";
> }
> 
> protocol kernel {
>   learn yes;
>   persist no;
>   scan time 20;
>   import all;
>   export all;
> }
> 
> protocol device {
>   scan time 10;
> }
> 
> protocol static {
>   debug all;
> }
> 
> protocol rip {
>   debug all;
>   honor always;
>   authentication none;
>   interface "*" { mode broadcast; };
> }

Here's the messages from my syslog, starting from BIRD's startup.

Dec 29 11:46:45 utilitia bird: direct1: Initializing
Dec 29 11:46:45 utilitia bird: kernel1: Initializing
Dec 29 11:46:45 utilitia bird: device1: Initializing
Dec 29 11:46:45 utilitia bird: static1: Initializing
Dec 29 11:46:45 utilitia bird: rip1: Initializing
Dec 29 11:46:45 utilitia bird: direct1: Starting
Dec 29 11:46:45 utilitia bird: direct1: State changed to feed
Dec 29 11:46:45 utilitia bird: kernel1: Starting
Dec 29 11:46:45 utilitia bird: kernel1: State changed to feed
Dec 29 11:46:45 utilitia bird: device1: Starting
Dec 29 11:46:45 utilitia bird: device1: Scanning interfaces
Dec 29 11:46:45 utilitia bird: Guessed router ID 10.1.1.1 according to interface eth1
Dec 29 11:46:45 utilitia bird: device1: State changed to feed
Dec 29 11:46:45 utilitia bird: static1: Starting
Dec 29 11:46:45 utilitia bird: static1: State changed to feed
Dec 29 11:46:45 utilitia bird: rip1: Starting
Dec 29 11:46:45 utilitia bird: rip1: Listening on (dummy), port 520, mode broadcast (0.0.0.0)
Dec 29 11:46:45 utilitia bird: rip1: State changed to feed
Dec 29 11:46:45 utilitia bird: direct1 < primary address 127.0.0.0/8 on interface lo added
Dec 29 11:46:45 utilitia bird: direct1 > added [best] 127.0.0.0/8 dev lo
Dec 29 11:46:45 utilitia bird: direct1 < primary address 12.17.190.208/28 on interface eth0 added
Dec 29 11:46:45 utilitia bird: direct1 > added [best] 12.17.190.208/28 dev eth0
Dec 29 11:46:45 utilitia bird: direct1 < primary address 10.1.1.0/24 on interface eth1 added
Dec 29 11:46:45 utilitia bird: direct1 > added [best] 10.1.1.0/24 dev eth1
Dec 29 11:46:45 utilitia bird: direct1: State changed to up
Dec 29 11:46:45 utilitia bird: kernel1: Connected to table master
Dec 29 11:46:45 utilitia bird: kernel1 < added 10.1.1.0/24 dev eth1
Dec 29 11:46:45 utilitia bird: kernel1 < added 127.0.0.0/8 dev lo
Dec 29 11:46:45 utilitia bird: kernel1 < added 12.17.190.208/28 dev eth0
Dec 29 11:46:45 utilitia bird: kernel1: State changed to up
Dec 29 11:46:45 utilitia bird: device1: State changed to up
Dec 29 11:46:45 utilitia bird: static1 < interface lo goes up
Dec 29 11:46:45 utilitia bird: static1 < interface eth0 goes up
Dec 29 11:46:45 utilitia bird: static1 < interface eth1 goes up
Dec 29 11:46:45 utilitia bird: static1 < interface tunl0 created
Dec 29 11:46:45 utilitia bird: static1 < interface gre0 created
Dec 29 11:46:45 utilitia bird: static1 < interface teql0 created
Dec 29 11:46:45 utilitia bird: static1 < interface brg0 created
Dec 29 11:46:45 utilitia bird: static1 < interface eth2 created
Dec 29 11:46:45 utilitia bird: static1: State changed to up
Dec 29 11:46:45 utilitia bird: rip1: Connected to table master
Dec 29 11:46:45 utilitia bird: rip1 < interface lo goes up
Dec 29 11:46:45 utilitia bird: rip1 < interface eth0 goes up
Dec 29 11:46:45 utilitia bird: rip1 < interface eth1 goes up
Dec 29 11:46:45 utilitia bird: rip1 < interface tunl0 created
Dec 29 11:46:45 utilitia bird: rip1 < interface gre0 created
Dec 29 11:46:45 utilitia bird: rip1 < interface teql0 created
Dec 29 11:46:45 utilitia bird: rip1 < interface brg0 created
Dec 29 11:46:45 utilitia bird: rip1 < interface eth2 created
Dec 29 11:46:45 utilitia bird: rip1 < filtered out 10.1.1.0/24 dev eth1
Dec 29 11:46:45 utilitia bird: rip1 < out of scope 127.0.0.0/8 dev lo
Dec 29 11:46:45 utilitia bird: rip1 < filtered out 12.17.190.208/28 dev eth0
Dec 29 11:46:45 utilitia bird: rip1: State changed to up
Dec 29 11:46:45 utilitia bird: kernel1: Scanning routing table
Dec 29 11:46:45 utilitia bird: kernel1: 0.0.0.0/0: [alien] created
Dec 29 11:46:45 utilitia bird: kernel1: Pruning table master
Dec 29 11:46:45 utilitia bird: kernel1: Pruning inherited routes
Dec 29 11:46:45 utilitia bird: kernel1 > added [best] 0.0.0.0/0 via 12.17.190.209 on eth0
Dec 29 11:46:45 utilitia bird: kernel1 < added 0.0.0.0/0 via 12.17.190.209 on eth0
Dec 29 11:46:45 utilitia bird: rip1 < filtered out 0.0.0.0/0 via 12.17.190.209 on eth0
Dec 29 11:46:45 utilitia bird: rip1: Listening on eth1, port 520, mode broadcast (10.1.1.255)
Dec 29 11:46:45 utilitia bird: rip1: Listening on eth0, port 520, mode broadcast (12.17.190.223)
Dec 29 11:46:51 utilitia bird: rip1: Broadcasting routing table to eth0
Dec 29 11:46:51 utilitia bird: rip1: Broadcasting routing table to eth1
Dec 29 11:46:55 utilitia bird: device1: Scanning interfaces
Dec 29 11:47:02 utilitia bird: rip1: Broadcasting routing table to eth0
Dec 29 11:47:02 utilitia bird: rip1: Broadcasting routing table to eth1
Dec 29 11:47:05 utilitia bird: device1: Scanning interfaces
Dec 29 11:47:05 utilitia bird: kernel1: Scanning routing table
Dec 29 11:47:05 utilitia bird: kernel1: 0.0.0.0/0: [alien] seen
Dec 29 11:47:05 utilitia bird: kernel1: Pruning table master
Dec 29 11:47:05 utilitia bird: kernel1: Pruning inherited routes
Dec 29 11:47:08 utilitia bird: rip1: Broadcasting routing table to eth0
Dec 29 11:47:08 utilitia bird: rip1: Broadcasting routing table to eth1
Dec 29 11:47:15 utilitia bird: rip1: Broadcasting routing table to eth0
Dec 29 11:47:15 utilitia bird: rip1: Broadcasting routing table to eth1
Dec 29 11:47:15 utilitia bird: device1: Scanning interfaces
Dec 29 11:47:25 utilitia bird: device1: Scanning interfaces
Dec 29 11:47:25 utilitia bird: rip1: Broadcasting routing table to eth0
Dec 29 11:47:25 utilitia bird: rip1: Broadcasting routing table to eth1
Dec 29 11:47:25 utilitia bird: kernel1: Scanning routing table
Dec 29 11:47:25 utilitia bird: kernel1: 0.0.0.0/0: [alien] seen
Dec 29 11:47:25 utilitia bird: kernel1: Pruning table master
Dec 29 11:47:25 utilitia bird: kernel1: Pruning inherited routes
Dec 29 11:47:33 utilitia bird: rip1: Broadcasting routing table to eth0
Dec 29 11:47:33 utilitia bird: rip1: Broadcasting routing table to eth1
Dec 29 11:47:35 utilitia bird: device1: Scanning interfaces

And this continues ad nauseam...  It seems to be saying that it's actually
broadcasting RIP out of the eth0 and eth1 interfaces.  I watch both
interfaces from my desktop machine (which is directly connected to both
networks that these interfaces are on, and has an appropriate IP address
for each network) and I see absolutely no RIP traffic whatsoever.  I can
see other traffic from this machine (NTP for instance, and UDP
traceroutes) just fine.  I've used both tethereal and tcpdump to watch the
traffic on both network interfaces, and the results are the same.  

Any ideas on why these broadcasts aren't actually happening?  Where in the
source should I look for clues?

advTHANKSance
'james

-- 
James A. Crippen <james at unlambda.com> ,-./-.
Lambda Unlimited  Anchorage, Alaska  |  |/  |
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