[cisco-voip] H323 authentication

[Jason Burns]

You can use an ACL on the router to accept only traffic from trusted devices
for a quick fix to that.
The security guide also covers using IPSec auth and encryption between CUCM
and H.323 GWs:

Cisco.com > Support > Voice and Unified Communicaitons > IP Telephony > Call
Control > Cisco Unified Communications Manager > Maintain and Operate Guides
> Cisco Unified Communications Manager Security Guide, Release 7.1(2)<http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/security/7_1_2/secugd/sec712-cm.html>


On Sun, Sep 13, 2009 at 1:37 AM, Dane Newman <dane.newman at gmail.com> wrote:

> Hello All
>
> I am very new to cisco voip and just starting to learn alittle.  Through my
> studies I was left with a question about h323 security.  I am initially
> setting up a cisco 2801 router as a gateway for my CUCM 7.0.  I have it
> setup but the though came to mind is there anyway to set up any kind of
> authentication between the CUCM and the cisco 2801 router?  If a malicious
> user put up there own CUCM on the lan they could infact use my gateway to
> make calls without such authentication? Sorry if I am missing something
> obvious.
>
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