[Asterisk-Users] [partialy - solved] IAX with shaw cable not going through

[Robert Webb]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Joseph
> Sent: Saturday, June 18, 2005 6:09 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] [partialy - solved] IAX with 
> shaw cable not going through
> 
> > Long Story: Shaw has those new Cable Modem - Motorola 
> SURFboard SB5100 
> > that once configured to an IP address with one firewall it 
> will retain 
> > that MAC address of that first firewall for about 4-hours.  When I 
> > first experimented that Cable Modem I've connected my 
> backup firewall 
> > and the Modem retained that MAC address.
> > So in order to connect the second firewall and get the same IP 
> > address, I need to spoof the MAC address of the first 
> firewall or wait 4-hours.
> > So I went with the second solution but I don't see how that 
> could make 
> > a difference, the only way to tell is to wait 4-hours to remove the 
> > spoof MAC address from the firewall.
> 
> It seems to me spoofing MAC address is causing the problem.
> I've connected the original firewall that I tested (without 
> spoof MAC address assigned to firewall) and every connection 
> is working FWD, VoipJet.
> 
> It seems it me that new Shaw Cable - Motorola SURFboard 
> SB5100 is a piece or crap.
>  


Actually, the SB5100's are one of the best cable modems on the market.
The question here is, how does Shaw configure their network? When you
originally signed up with them, did you have to give them the MAC
address off your network card? Or just the MAC off the modem? If it is
the second, then power down the modem for a minute or two, then with the
new firewall in place, power the SB5100 back up, then power up the new
firewall. No, you will probably not retain the same IP address. That is
just life in the cable HIS industry.

It is not the SB5100 causing the issue. If anything, it is Shaw and
their DHCP policies. I have a SB5100, and by power cyclcing, I can
change firewalls all day long with no issues.

Robert