Richard writes:
Going back to the real problem... In the short term, I
think that the
quickest solution is to find out a NAT device which allows inbound traffic
to refresh NAT binding timer. I know that cisco PIX is one of them, but
would like to find out if any lower end NAT firewall/router have it
too...
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