Cisco Cisco IOS Software Release 12.2(2)XA

This section describes the system requirements for Cisco IOS Release 12.2(2)XA4 and includes the 
following sections:

Cisco IOS
Release 12.2(2)XA

H.323v2 Protocol, SGCP and MGCP Protocol Stack, IP Routing 
Operations

H.323v2 caller ID support 

Call Progress Tone support for the Czech Republic and Mexico

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Cisco CVA122

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Cisco IOS
Release 12.1(5)XU2

None

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Cisco CVA122

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Cisco IOS
Release 12.1(5)XU

Cable Monitor Web Diagnostics Tool

Cisco Secure Intrusion Detection System (IDS) (formerly known 
as NetRanger) support

DOCSIS 1.0+ Extensions—Dynamic Multi-SID Assignment and 
Concatenation 

DOCSIS Baseline Privacy (BPI)

Dynamic Host Configuration Protocol (DHCP) Proxy Support

Enhanced IP bridging functionality

Full and DOCSIS/EuroDOCSIS-compliant bridging

NAT

1

 - support for NetMeeting Directory (Internet Locator 

Service - ILS)

Network address translation and port address translation 
(NAT/PAT)

Parser Cache

RFC 2233 support for link up/down traps and for the 
IF-MIB MIB

Routing (RIP V2

3

)

Secure Shell (SSH) Version 1 Support

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1.

NAT = Network Address Translation

3.

RIP V2 = Routing Information Protocol version 2