[Pyro] Why do my python programs no longer see network broadcasts.>

[Gary Herron]

On Sunday 04 May 2003 09:46 am, Gary Herron wrote:
> A recent upgrade of my linux system to RedHat 9 has caused all my Pyro
> programs to stop working.  By running several tests involving
> Demo/sockets/{brodcast.py,radio.py} (the simplest test of broadcasting
> to be found) and using another machine on the network, I've been able
> to trace the problem down to the fact that programs on the upgraded
> linux machine do not see the broadcast packets. They can broadcast
> just fine, but never recieve a broadcast from anywhere.
>
> So this is more likely to be a network problem than a Python/Pyro
> problem, but I thought I'd ask here first anyway.  Does anyone have a
> clue of what the problem might be?

One or two responses led to a resolution.  It is the firewall
(iptables) which is blocking the brodcast. 

I believe I'm running the same firewall rules as I was before the
upgrade, so there still remains the mystery of why things worked
before the upgrad but not after.  

Gary Herron