Cisco IOS Wide-Area Networking Configuration Guide - Free Books

Step 5Step 6Step 7Step 8Command or Actionl2tp id local-session-id remote-session-idExample:Router(config-if-xconn)# l2tp id 222 111l2tp cookie local size low-value [high-value]Example:Router(config-if-xconn)# l2tp cookie local 454321l2tp cookie remote size low-value [high-value]Example:Router(config-if-xconn)# l2tp cookie remote 412345l2tp hello l2tp-class-nameExample:Router(config-if-xconn)# l2tp hellol2tp-defaultsPurposeConfigures the identifiers for the local L2TPv3 session andfor the remote L2TPv3 session on the peer PE router.• This command is required to complete the attachmentcircuit configuration and for a static L2TPv3 sessionconfiguration.(Optional) Specifies the value that the peer PE must includein the cookie field of incoming (received) L2TP packets.• The size of the cookie field can be 4 or 8 bytes. If youdo not enter this command, no cookie value is includedin the header of L2TP packets.• If you configure the cookie length in incoming packetsas 8 bytes, you must specify a 4-byte high value and a4-byte low value.(Optional) Specifies the value that the router includes in thecookie field of outgoing (sent) L2TP packets.• The size of the cookie field can be 4 or 8 bytes. If youdo not enter this command, no cookie value is includedin the header of L2TP packets.• If you configure the cookie length in outgoing packetsas 8 bytes, you must specify a 4-byte high value and a4-byte low value.(Optional) Specifies the L2TP class name to use (see thesection “Configuring L2TP Control Channel Parameters”)for control channel configuration parameters, including theinterval to use between hello keepalive messages.NoteThis command assumes that there is no controlplane to negotiate control channel parameters andthat a control channel is to be used to providekeepalive support through an exchange of L2TPhello messages. By default, no hello messages aresent.65