Username stripping per routing instance

You can configure a subscriber access profile so that a portion of each subscriber login string is discarded and the remaining characters subsequently are used as a modified username by an external AAA server for session authentication and accounting. The modified username appears, for example, in RADIUS Access-Request, Acct-Start, and Acct-Stop messages, as well as RADIUS-initiated disconnect requests and change of authorization (CoA) requests. The login string is examined in the direction you specify until a delimiter is identified as one of the configured delimiters. The delimiter and all characters to the right of the delimiter are discarded.