We are concerned with the ability of any internal user to use an H323 tool to access our remote site routers that are SRST enabled, for the purpose of making calls on POTS lines that bypass the Call Mgr. I have found that any active IP interface on such a router will accept an H323 connection from a software utility that I found on the Internet, and place a call as long as it matches an outbound dial peer. Since only the call manager should be using H323 to the SRST router, we have thought about using an inbound access-list that permits tcp/1720 from the call managers, then denies that port number from anything else (to router IP's), however, this does not seem so pretty.
Any suggestions for securing H323 on these devices would be appreciated.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...