Cisco Cisco IOS Software Releases 12.2 MC

The following new features are introduced in Cisco IOS Release 12.2(15)MC1:

For information on new features in previous Cisco IOS Release 12.2MC software releases, see the 
platform release notes:

http://www.cisco.com/univercd/cc/td/doc/product/wireless/ipran/1_0/relnotes/index.htm

With Cisco IOS Release 12.2MC2c, IP ID checking was suppressed in RTP/UDP header compression. 
With Cisco IOS Release 12.2(15)MC1 and later, a new option has been added to the 
ip rtp header-compression interface configuration command that allows you to enable or suppress this 
checking. The default is to suppress.

To suppress IP ID checking, issue the following command while in interface configuration mode:

To restore IP ID checking, use the no form of this command. 

This new feature is identified by CSCdz75957.

With Cisco IOS Release 12.2(15)MC1 and later, how ACFC and PFC are processed during PPP 
negotiation can be configured. 

Use the following commands beginning in global configuration mode to configure ACFC handling 
during PPP negotiation: 

Router(config-if)# ip rtp header-compression 

Suppresses the IP ID checking in RTP/UDP header 
compression.

Router(config)# interface type slot/port 

Configures an interface type and enters interface 
configuration mode.

Router(config-if)# shutdown

Shuts down the interface.