Tested: [pptp-server] PPPD stalling on 2.2.11 + tcp patches

[James B. MacLean]

On Mon, 16 Aug 1999, Philip Van Baren wrote:
> James,
> You might try change the value for the packet receive window size.  In
> version 0.9.4 this was 2, in 0.9.5 through 0.9.9 it was 1, and in 0.9.10 and
> above it echoes back the same value as the other side uses.
> ---- ctrlpacket.c ------------
>         /* lets match their window size for now... was
> htons(PKT_RECV_WINDOW_SIZE)
>          */
>         out_call_rply.pckt_recv_size = htons(4); /*was:
> out_call_rqst->pckt_recv_size;*/
> ------------------------
> Phil

Hi Phil,

Thanks for the response.

I tried your suggestion, but it is still failing in the same way.

Enclosed I have attached 2 tcpdumps. One on the pptpd side and one on the
client side.

The end of the logs is where the traffic died :(.

thanks again,
JES
--
James B. MacLean        macleajb at ednet.ns.ca
Department of Education http://www.ednet.ns.ca/~macleajb
Nova Scotia, Canada
B3M 4B2
-------------- next part --------------
13:44:36.622791 10.227.52.6.10777 > 142.227.51.1.www: S 516020089:516020089(0) win 512 <mss 1460>
13:44:36.625011 142.227.51.1.www > 10.227.52.6.10777: S 4126267905:4126267905(0) ack 516020090 win 16060 <mss 1460>
13:44:36.626877 10.227.52.6.10777 > 142.227.51.1.www: . ack 1 win 32120 (DF)
13:44:36.633717 10.227.52.6.10777 > 142.227.51.1.www: P 1:121(120) ack 1 win 32120 (DF)
13:44:36.675888 142.227.51.1.www > 10.227.52.6.10777: . 1:1461(1460) ack 121 win 16060
13:44:36.677216 142.227.51.1.www > 10.227.52.6.10777: . 1461:2921(1460) ack 121 win 16060
13:44:36.678466 142.227.51.1.www > 10.227.52.6.10777: . 2921:4381(1460) ack 121 win 16060
13:44:36.688361 10.227.52.6.10777 > 142.227.51.1.www: . ack 1 win 32120 (DF)
13:44:36.947406 10.227.52.6.10777 > 142.227.51.1.www: . ack 1 win 32120 (DF)
13:44:38.170961 142.227.51.1.www > 10.227.52.6.10777: . 1:1461(1460) ack 121 win 16060
13:44:38.437330 10.227.52.6.10777 > 142.227.51.1.www: . ack 1461 win 30660 (DF)
13:44:38.439907 142.227.51.1.www > 10.227.52.6.10777: . 1461:2921(1460) ack 121 win 16060
13:44:38.441203 142.227.51.1.www > 10.227.52.6.10777: . 2921:4381(1460) ack 121 win 16060
13:44:38.452130 10.227.52.6.10777 > 142.227.51.1.www: . ack 4381 win 30660 (DF)
13:44:38.454673 142.227.51.1.www > 10.227.52.6.10777: . 4381:5841(1460) ack 121 win 16060
13:44:38.455957 142.227.51.1.www > 10.227.52.6.10777: . 5841:7301(1460) ack 121 win 16060
13:44:38.457253 142.227.51.1.www > 10.227.52.6.10777: . 7301:8761(1460) ack 121 win 16060
13:44:38.467285 10.227.52.6.10777 > 142.227.51.1.www: . ack 7301 win 32120 (DF)
13:44:38.469856 142.227.51.1.www > 10.227.52.6.10777: . 8761:10221(1460) ack 121 win 16060
13:44:38.471132 142.227.51.1.www > 10.227.52.6.10777: . 10221:11681(1460) ack 121 win 16060
13:44:39.674948 142.227.51.1.www > 10.227.52.6.10777: . 7301:8761(1460) ack 121 win 16060
13:44:42.715040 142.227.51.1.www > 10.227.52.6.10777: . 7301:8761(1460) ack 121 win 16060
13:44:43.337101 10.227.52.6.10775 > 142.227.51.1.www: F 1896691214:1896691214(0) ack 4103303651 win 32120
13:44:43.337981 142.227.51.1.www > 10.227.52.6.10775: . ack 1 win 16060
-------------- next part --------------
13:56:30.079400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: S 516020089:516020089(0) win 512 <mss 1460>
13:56:30.079400 Trademart-1.EDnet.NS.CA.http > 10.227.52.6.10777: S 4126267905:4126267905(0) ack 516020090 win 16060 <mss 1460>
13:56:30.079400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: . ack 1 win 32120 (DF)
13:56:30.089400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: P 1:121(120) ack 1 win 32120 (DF)
13:56:30.149400 Trademart-1.EDnet.NS.CA.http > 10.227.52.6.10777: . 2921:4381(1460) ack 121 win 16060
13:56:30.149400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: . ack 1 win 32120 (DF)
13:56:30.409400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: . ack 1 win 32120 (DF)
13:56:31.639400 Trademart-1.EDnet.NS.CA.http > 10.227.52.6.10777: . 1:1461(1460) ack 121 win 16060
13:56:31.899400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: . ack 1461 win 30660 (DF)
13:56:31.909400 Trademart-1.EDnet.NS.CA.http > 10.227.52.6.10777: . 1461:2921(1460) ack 121 win 16060
13:56:31.909400 Trademart-1.EDnet.NS.CA.http > 10.227.52.6.10777: . 2921:4381(1460) ack 121 win 16060
13:56:31.909400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: . ack 4381 win 30660 (DF)
13:56:31.919400 Trademart-1.EDnet.NS.CA.http > 10.227.52.6.10777: . 4381:5841(1460) ack 121 win 16060
13:56:31.919400 Trademart-1.EDnet.NS.CA.http > 10.227.52.6.10777: . 5841:7301(1460) ack 121 win 16060
13:56:31.929400 10.227.52.6.10777 > Trademart-1.EDnet.NS.CA.http: . ack 7301 win 32120 (DF)
13:56:36.799400 10.227.52.6.10775 > Trademart-1.EDnet.NS.CA.http: F 1896691214:1896691214(0) ack 4103303651 win 32120