-----Original Message----- From: asterisk-users-boun...@lists.digium.com on behalf of Noah Miller Sent: Thu 5/6/2010 10:41 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] OT: NAT in SPA922 >>> It is a building, with 24 separated rooms, each room will have a PC and a IP >>> Phone. Every room connected to a switch Cisco 2950. >>> I want keeping all PCs isolated behind a NAT (no access to neighbour's PC), >>> and still keep communication in same LAN between all IP Phones. >>> >>> Should I take another approach on that? >>> >> Put each PC in its own VLAN. Keep all the phones in one VLAN. >> >> Although having a $30 router in each room hanging off the phone would >> accomplish what you want also. > > Take j's suggestion to use VLANs. This is not a good situation for > NAT. Cisco 2950's can do VLANs. >
to be clear, the only way this will work with the PCs is if each PC vlan is *also* a unique ip subnet (else how do all the vlans access a common default gw?) place the phones in a voice vlan, and the phone problem is solved. as for the PC isolation, you might get better feedback on a cisco or other networking forum. -david
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