Cisco Cisco IOS Software Release 12.2(27)SBC

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The NAS-Port-ID Format C Enhancement feature introduces the nas-port-id format c command for 
Broadband Access Group (BBA group) configuration. This command defines a specific broadband 
subscriber access line identification (NAS-Port-ID) coding format. When this command is configured, 
the original value of the NAS-Port-ID tag is overwritten. If no valid string is available for the Remote-ID 
or the Circuit-ID tag as part of Dynamic Host Configuration Protocol (DHCP) option 82, a default string 
of 0/0/0/0/0/0 is appended to the NAS-Port-ID tag. 

Your Cisco IOS software release may not support all of the features documented in this module. To reach 
links to specific feature documentation in this module and to see a list of the releases in which each feature is 
supported, use the 

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