Re: [lwip-users] lwip2.0.2 l2tp question

[odobryabov]

Yes, you are right, these are just echo requests and replies:

ppp phase changed[1]: phase=10
pppol2tp: input packet, len=0, tunnel=21944, session=8324, ns=0, nr=0
rcvd [LCP EchoReq id=0x1 magic=0x5e33e1ff]
sent [LCP EchoRep id=0x1 magic=0xb4b7bbcf]
pppol2tp: input packet, len=0, tunnel=21944, session=8324, ns=0, nr=0
rcvd [LCP EchoReq id=0x2 magic=0x5e33e1ff]
sent [LCP EchoRep id=0x2 magic=0xb4b7bbcf]
pppol2tp: input packet, len=0, tunnel=21944, session=8324, ns=0, nr=0
rcvd [LCP EchoReq id=0x3 magic=0x5e33e1ff]
sent [LCP EchoRep id=0x3 magic=0xb4b7bbcf]
pppol2tp: input packet, len=0, tunnel=21944, session=8324, ns=0, nr=0
rcvd [LCP EchoReq id=0x4 magic=0x5e33e1ff]
sent [LCP EchoRep id=0x4 magic=0xb4b7bbcf]
.....
pppol2tp: input packet, len=20, tunnel=21944, session=0, ns=2, nr=4
pppol2tp: input packet, len=20, tunnel=21944, session=0, ns=2, nr=4
.....
pppol2tp: input packet, len=0, tunnel=21944, session=8324, ns=0, nr=0
rcvd [LCP EchoReq id=0x1c magic=0x5e33e1ff]
sent [LCP EchoRep id=0x1c magic=0xb4b7bbcf]
pppol2tp: input packet, len=45, tunnel=21944, session=0, ns=3, nr=4
pppol2tp: input packet, len=0, tunnel=21944, session=8324, ns=0, nr=0
rcvd [LCP TermReq id=0x3 "User request"]
LCP terminated by peer (User request)

May be the problem is in that timeout message:

pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 
rcvd [LCP ConfReq id=0x2 <auth chap MS-v2> <magic 0xd9bb4bcc>] 
sent [LCP ConfAck id=0x2 <auth chap MS-v2> <magic 0xd9bb4bcc>] 
pppol2tp: timeout 
sent [LCP ConfReq id=0x5 <mru 1450> <magic 0xdadcdfcd>] 
pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 
rcvd [LCP ConfAck id=0x5 <mru 1450> <magic 0xdadcdfcd>] 
netif_set_mtu[1]: mtu=1450 
ppp_send_config[1] 
ppp_recv_config[1]

But if LwIP reached running phase, doesn't it mean l2tp initialisation was
clear (even with that timeout)?

May be this is wrong configure on VPN-server? But that is a quite simple, I
connected to it successfully using Windows VPN-client. Server configure:
<http://lwip.100.n7.nabble.com/file/n30094/1.jpg> 
<http://lwip.100.n7.nabble.com/file/n30094/2.jpg> 



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