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</o:shapelayout></xml><![endif]--></head><body lang=EN-IE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi There,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I need to establish a l2tp tunnel from a cisco LAC. The l2tp tunnel needs to be authenticated. We are using the correct shared secret but I can’t get past this error. The CHAP challenge is failing. Everthing works if we don’t use l2tp tunnel authentication. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>LAC config:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>vpdn-group Test<o:p></o:p></p><p class=MsoNormal> request-dialin<o:p></o:p></p><p class=MsoNormal> protocol l2tp<o:p></o:p></p><p class=MsoNormal> domain xxxxxx<o:p></o:p></p><p class=MsoNormal> initiate-to ip 185.xx.xx.xx<o:p></o:p></p><p class=MsoNormal> initiate-to ip 185.xx.xx.xx<o:p></o:p></p><p class=MsoNormal> local name xxxxxx<o:p></o:p></p><p class=MsoNormal> l2tp tunnel password 0 secret<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: get_call: allocating new tunnel for host 10.1.1.204, port 1701.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: handling avp's for tunnel 41428, call 0<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: message_type_avp: message type 1 (Start-Control-Connection-Request)<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: protocol_version_avp: peer is using version 1, revision 0.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: framing_caps_avp: supported peer frames:<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: firmware_rev_avp: peer reports firmware version 4400 (0x1130)<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: hostname_avp: peer reports hostname 'permanet'<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: vendor_avp: peer reports vendor 'Cisco Systems, Inc.'<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: assigned_tunnel_avp: using peer's tunnel 62103<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: receive_window_size_avp: peer wants RWS of 1024. Will use flow control.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: challenge_avp: challenge avp found<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 56.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 57.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 110.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:29 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 111.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: get_call: allocating new tunnel for host 10.1.1.204, port 1701.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: handling avp's for tunnel 63932, call 27345600<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: message_type_avp: message type 1 (Start-Control-Connection-Request)<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: protocol_version_avp: peer is using version 1, revision 0.<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: framing_caps_avp: supported peer frames:<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: firmware_rev_avp: peer reports firmware version 4400 (0x1130)<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: hostname_avp: peer reports hostname 'permanet'<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: vendor_avp: peer reports vendor 'Cisco Systems, Inc.'<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: assigned_tunnel_avp: using peer's tunnel 62103<o:p></o:p></p><p class=MsoNormal>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: receive_window_size_avp: peer wants RWS of 1024. Will use flow control.<o:p></o:p></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: challenge_avp: challenge avp found<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 56.<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 57.<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 110.<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: don't know how to handle atribute 111.<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: control_finish: Peer requested tunnel 62103 twice, ignoring second one.<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: build_fdset: closing down tunnel 63932<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: handle_avps: handling avp's for tunnel 41428, call 0<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: message_type_avp: message type 4 (Stop-Control-Connection-Notification)<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: result_code_avp: peer closing for reason 4 (Requester is not authorized to establish a control channel), error = 0 (process challenge response failed mismatch)<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: assigned_tunnel_avp: using peer's tunnel 62103<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: control_finish: Connection closed to 10.1.1.204, port 1701 (process challenge response failed mismatch), Local: 41428, Remote: 62103<o:p></o:p></b></p><p class=MsoNormal><b>Aug 25 16:01:30 pnetadmin-ProLiant-DL160-Gen9 xl2tpd[18563]: build_fdset: closing down tunnel 41428<o:p></o:p></b></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Looking forward to some tips.<o:p></o:p></p><p class=MsoNormal>Chris. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>