Back to H323 and NAT

[dmitry]

Since release 12.2.2T Cisco announced the support of H323 RAS (Gatekeeper registration, admission, status) through NAT on enterprise IOS versions. I've tried 12.2.8T -> 12.2.11T on 7206 and could not get it working - NAT translates the IP address in the IP header of RAS packets only and not the payload (H323 signaling address). Had a case opened but so far no clear answer whether this works at all and with what versions of H323.

Tested with Polycoms (FX - 3.0.6 -> 4.2; SP - 7.0.3 -> 7.2), Tandbergs (B4.1 -> B5.0)

Thanks

[p.krane]

Of course, the Cisco IOS release 12.2.2T onwards, has the feature of NATwith Enhanced H.225/H.245 Forwarding Engine but it doesn't support RAS. This has been mentioned in one of the Cisco documents given below. Please refer:

NATEnhanced H.225/H.245 Forwarding Engine

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/dtncsm.htm

[dmitry]

Thanks for the link.

I went to the CCO feature navigator and this is what I found:

http://www.cisco.com/en/US/partner/products/sw/iosswrel/ps1839/products_feature_guide09186a0080087b14.html

Releases supported:

12.2(13)T1

12.2(13)T

12.2(11)YV

12.2(11)YU

12.2(11)YT1

12.2(11)YT

12.2(11)YQ

12.2(11)T3

12.2(11)T2

12.2(11)T1

12.2(11)T

12.2(8)YN1

12.2(8)YN

12.2(8)T8

12.2(8)T7

12.2(8)T5

12.2(8)T4

12.2(8)T3

12.2(8)T2

12.2(8)T1

12.2(8)T

12.2(4)T5

12.2(4)T3

12.2(4)T1

12.2(4)T

12.2(2)T4

12.2(2)T3

12.2(2)T2

12.2(2)T1

12.2(2)T

Tried : 12.2.8T (all), 12.2.11T(all)

The only question is: what is the point to announce the feature and never have it actually implemented

[rsteed]

I believe the next release of Cisco Nat is suppose to support H323 version 3 and 4. Previously they only supported Version 2