Feb. 27, 2012
11:28 a.m.
frank, On Mon, Feb 27, 2012 at 6:49 AM, Alex Balashov <abalashov at evaristesys.com> wrote:
On 02/26/2012 11:34 PM, Frank Bulk wrote:
Yes, our SBC does supports the usual NAT traversal features, but our customer will have more than one trunk with us...they have several two PRIs today, so it will be 15 to 20 active trunks on a regular basis and almost 30 at peak.
in addition to the un-nat-magik on the sbc, the asa/pix will try to translate not just the header, but the sip messages themselves (sip inspection/sip fixup) http://www.cisco.com/en/US/products/ps6120/products_configuration_example091... unless they have a very small fw, resources should be ok (i have done
200Mbps with a 72xx doing the nat/sip mangling @50% cpu, iirc)
/joshua