[pptp-server] zyxel prestige 310 pptp to poptop more info

[franz schaefer]

ok. now i tried it with older versions of the software:

   kernel 2.2.19 (no patches applied)
   pptpd-1.0.1
   ppp-2.3.11 (no patches applied)

the effects are absolutly identical with the ones i found with the 2.4.4
kernel. ping works like it should but tcp connections never work..

# tcpdump -ni ppp0
tcpdump: listening on ppp0
18:04:42.200932 10.22.22.102.1025 > 192.168.99.66.19: S
2862510754:2862510754(0) win 32640 <mss 1360,sackOK,timestamp 98520
0,nop,wscale 0> (DF) [tos 0x10] 

18:04:42.205018 192.168.99.66.19 > 10.22.22.102.1025: S
2861392536:2861392536(0) ack 2862510755 win 3792 <mss 960,sackOK,timestamp
8493626 98520,nop,wscale 0> (DF)

18:04:42.205055 10.22.22.102.1025 > 192.168.99.66.19: . ack 1 win 32640
<nop,nop,timestamp 98520 8493626> (DF) [tos 0x10] 

18:05:50.929980 10.22.22.102.1024 > 192.168.99.66.19: FP
2342200939:2342200943(4) ack 2361938752 win 32640 <nop,nop,timestamp 105393
8445512> (DF) [tos 0x10]

and the connections stops here...

while a ping works just like ist should:

18:06:53.049990 10.22.22.102 > 192.168.99.66: icmp: echo request
18:06:53.053219 192.168.99.66 > 10.22.22.102: icmp: echo reply (DF)
18:06:54.049999 10.22.22.102 > 192.168.99.66: icmp: echo request
18:06:54.053273 192.168.99.66 > 10.22.22.102: icmp: echo reply (DF)

greetings

mond.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   .                   Franz Schaefer        
  ..           +43/676/3195231 +43/1/4933256/73 
  ...              schaefer at maxwell.sil.at
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