On Mon, Nov 16, 2009 at 10:53 PM, Luki <lugos...@gmail.com> wrote: > Darryl, > > OK, that could work but it makes the use of these phones behind > consumer routers rather impossible. How many of those will inspect and > transform SIP packets? Oh why does Cisco have to do things differently > from everyone else... > > Luki > > 2009/11/16 Darryl Dunkin <ddun...@netos.net>: > > You need to enable SIP transformations on the firewall, the packets will > > have to be dynamically re-written to handle multiple Cisco phones of > > these models. Be sure 'nat=no' is set in sip.conf for the phones as > > well, or Asterisk will reply to the incorrect ports (source instead of > > the mangled contact header). > > > > In this case, you'll need to compile in the SIP connection tracking/NAT > > bits in the kernel, they should be able to mangle the packets > > appropriately. I have never tested this, as all my deployments have > > hardware firewalls with SIP support built-in. > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
I use two accounts on a Cisco 7941 at home that is connected to my asterisk server running at a datacenter. My home has NAT, my asterisk server does not. I do not need to do any of the packet mangling stuff, just set "nat=no" in the sip.conf entry for the Cisco phone. Not sure how much different the 7971 is though... -- Thanks, --Warren Selby http://www.selbytech.com
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