Configurar una VPN contra un servidor pptp con un linksys, da error:

Jan  1 00:04:39  kern.info pppd[994]: No response to 3 echo-requests
Jan  1 00:04:39  kern.notice pppd[994]: Serial link appears to be disconnected.
Jan  1 00:04:39  kern.info pppd[994]: Connect time 0.2 minutes.
Jan  1 00:04:39  kern.info pppd[994]: Sent 1630080 bytes, received 0 bytes.
Jan  1 00:04:39  kern.err pppd[994]: MPPE disabled
Jan  1 00:04:39  kern.notice pptp[997]: anon log[pptp_read_some:pptp_ctrl.c:543]: read returned zero, peer has closed
Jan  1 00:04:39  kern.notice pptp[997]: anon log[callmgr_main:pptp_callmgr.c:255]: Closing connection (shutdown)
Jan  1 00:04:39  kern.notice pptp[997]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request' 
Jan  1 00:04:39  kern.notice pptp[997]: anon log[pptp_read_some:pptp_ctrl.c:543]: read returned zero, peer has closed
Jan  1 00:04:39  kern.notice pptp[997]: anon log[call_callback:pptp_callmgr.c:78]: Closing connection (call state)
Jan  1 00:04:39  kern.info pppd[994]: Terminating on signal 15
Jan  1 00:04:39  kern.notice pppd[994]: Connection terminated.
Jan  1 00:04:40  kern.warn pptp[1000]: anon warn[decaps_gre:pptp_gre.c:324]: short read (-1): Protocol not available
Jan  1 00:04:40  kern.info pppd[994]: Exit.







Jan  1 00:04:45  kern.notice pptp[1032]: anon log[main:pptp.c:267]: The synchronous pptp option is NOT activated 
Jan  1 00:04:45  kern.notice pptp[1035]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request' 
Jan  1 00:04:45  kern.notice pptp[1035]: anon log[ctrlp_disp:pptp_ctrl.c:738]: Received Start Control Connection Reply
Jan  1 00:04:45  kern.notice pptp[1035]: anon log[ctrlp_disp:pptp_ctrl.c:772]: Client connection established.
Jan  1 00:04:46  kern.notice pptp[1035]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request' 
Jan  1 00:04:46  kern.notice pptp[1035]: anon log[ctrlp_disp:pptp_ctrl.c:857]: Received Outgoing Call Reply.
Jan  1 00:04:46  kern.notice pppd[1032]: pppd 2.4.3 started by root, uid 0
Jan  1 00:04:46  kern.info pppd[1032]: Using interface ppp0
Jan  1 00:04:46  kern.notice pppd[1032]: Connect: ppp0 <--> /dev/pts/1
Jan  1 00:04:46  kern.notice pptp[1035]: anon log[ctrlp_disp:pptp_ctrl.c:896]: Outgoing call established (call ID 0, peer's call ID 12841). 
Jan  1 00:04:48  kern.notice pppd[1032]: MPPE 128-bit stateless compression enabled
Jan  1 00:04:49  kern.err pppd[1032]: not replacing existing default route to vlan1 [10.139.67.129]
Jan  1 00:04:49  kern.notice pppd[1032]: local  IP address 10.0.0.14
Jan  1 00:04:49  kern.notice pppd[1032]: remote IP address 10.0.0.1
Jan  1 00:04:49  kern.notice pppd[1032]: primary   DNS address 8.8.8.8