[Serusers] NAT ping and consumer router

[Richard]

Hi Juha,

A quick check on ebay and google shows that the price is US$400-500 for a
cisco 831 router. I understand that pix is an overkill and its fixup-sip is
almost unusable due to several serious design flaws. But the capability of
inbound traffic refreshing timer and adjustable udp traffic timeout value
makes it a feasible option.

I am more looking at sub-$100 price range consumer router. With NAT ping,
the only requirement is the support of inbound traffic refreshing the NAT
binding timer and ideally a large timeout value.

If I go to the $200 range solution, there are a few options, e.g. a linksys
RV042 router with open source code provided by linksys, or a Soekris box
with open source m0n0wall firewall. The pro is the ability to adjust the
timeout value for SIP (port 5060) traffic. The con is the time and effort of
developing this solution and relative high cost compared with out of box
solutions.

Thanks,
Richard


-----Original Message-----
From: Juha Heinanen [mailto:jh at tutpro.com] 
Sent: Sunday, August 22, 2004 8:26 PM
To: Richard
Cc: 'Jiri Kuthan'; 'Jesus Rodriguez'; serusers at lists.iptel.org
Subject: RE: [Serusers] NAT ping and consumer router


any cisco ios router, e.g., low end dsl routers, have sip aware nat and
you don't need any pinging.  pix is cisco firewall and may be too
expensive.

-- juha