6ff0e5e8_tware_Releases_12_4_T____Cisco__Purpose
[0] Step 4 [Command or Action] Use Telnet to access a router port and repeat Steps 1 and 2. [Purpose] 
Enters global configuration mode in a recursive Telnet session, which allows the output to be redirected away from the console port.
IPv6 Configuration Guide, Cisco IOS Release 12.4T - Configuring First Hop Redundancy Protocols in IPv6 [Cisco IOS Software Releases 12.4 T] - Cisco