Re: Help, I have some problem with LCP ConfReq

I am wondering why my gmail can't recieve this letter from mailing list.
(I checked my Inbox and Spam both, and found nothing)
I finally found it on the
web(http://marc.info/?l=poptop-server&m=130221781829603&w=2),
and i am sorry for sending the second one by copying them here.

>Benimaur, your logs show that pppd on the server sends LCP ConfReq, but
>pppd on the client does not receive them.  Therefore the failure occurs.

I can understand.

>
>On the client system, check for iptables rules.
>

On my client host, there are no iptables rules:

skyshouter:~# iptables -vL
Chain INPUT (policy ACCEPT 638 packets, 105K bytes)
 pkts bytes target     prot opt in     out     source
destination

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source
destination

Chain OUTPUT (policy ACCEPT 649 packets, 64531 bytes)
 pkts bytes target     prot opt in     out     source
destination
skyshouter:~# iptables -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT

>Evidence the client sends LCP ConfReq but does not receive LCP ConfAck
>or LCP ConfReq:
>
>> Apr  7 18:50:13 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> \
>>                 <magic 0xf93b9fd5> <pcomp> <accomp>]
>> Apr  7 18:50:16 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> \
>>                 <magic 0xf93b9fd5> <pcomp> <accomp>]
>> Apr  7 18:50:19 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> \
>> <magic 0xf93b9fd5> <pcomp> <accomp>]
>
>Evidence the server receives LCP ConfReq and does send LCP ConfAck and
>LCP ConfReq:
>
>> Apr  7 18:50:04 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic \
>>                 0xf93b9fd5> <pcomp> <accomp>]
>> Apr  7 18:50:04 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap 0x0> <magic \
>>                 0xf93b9fd5> <pcomp> <accomp>]
>> Apr  7 18:50:07 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic \
>>                 0xf93b9fd5> <pcomp> <accomp>]
>> Apr  7 18:50:07 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap 0x0> <magic \
>>                 0xf93b9fd5> <pcomp> <accomp>]
>> Apr  7 18:50:07 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth \
>> chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]

>Client has blocked ears.
I want to check the GRE connection from the server to my client, but I
dunno how to traceroute
the GRE packets.

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