Cisco Cisco IOS Software Release 12.2(15)ZL

administration.) This information can be used to construct a graph of autonomous system connectivity 
from which routing loops can be pruned and with which autonomous system-level policy decisions can 
be enforced. BGP is often run among the networks of Internet service providers (ISPs).

The external general packet radio service/code division multiple access (GPRS/CDMA) modems 
provide the mobile access router with a Layer 2 roaming interface. The Mobile IP stack would allow 
Layer 3 roaming IP connectivity for the mobile access router. These external modems will be connected 
to a serial interface of the mobile access router; the serial interface of the mobile access router will be 
running in asynchronous mode.

The following Management Information Bases (MIBs) are supported in Cisco IOS Release 12.2(15)ZL 
in addition to those supported in Cisco IOS Release 12.2(11)YQ and Cisco IOS Release 12.2(11)YR.

CISCO-BGP4-MIB

BGP4-MIB

CISCO-NBAR-PROTOCOL-DISCOVERY-MIB

For more details on the MIB Support for Mobile IP feature, and for a list of the MIBs supported, refer 
to the following URL:

For information regarding the features supported in the Cisco IOS Release 12.2(15)T, refer to the 
Cross-Platform Release Notes and New Feature Documentation links at the following location on 
Cisco.com:

This URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and 
click the following path:

:

 Technical Documents

:

:

 Release 12.2

:

 Release Notes

:

 

Caveats describe unexpected behavior or defects in the Cisco IOS software releases. Severity 1 caveats 
are the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the 
least serious of these three severity levels.

Caveats in Cisco IOS Release 12.2(15)T are also in Cisco IOS Release 12.2(15)ZL. For information on 
caveats in Cisco IOS Release 12.2(15)T, refer to the 

document. For information on caveats in Cisco IOS Release 12.2, refer to the 

 document. These documents list severity 1 and 2 caveats; the documents are located on 

Cisco.com and the Documentation CD.