[squeak-dev] Re: Webclient + localhost error

Sean P. DeNigris sean at clipperadams.com
Fri Oct 29 18:48:07 UTC 2010



Frank Shearar wrote:
> 
> Start tcpdump with something like: sudo tcpdump -i fw0 -v port 8090 and 
> then trying to access the site through Safari.
> 

Exciting!  WebClient is communicating, just not successfully.

After a little playing around, running "sudo tcpdump -i lo0 -vnS port 2002"
(I keep changing the port) produced the following packet info:
  Safari's first packet:
    08:44:10.841003 IP6 (hlim 64, next-header TCP (6) payload length: 44)
::1.54889 > ::1.2002: Flags [S], cksum 0x9345 (correct), seq 2994624526, win
65535, options [mss 16324,nop,wscale 2,nop,nop,TS val 1034896177 ecr
0,sackOK,eol], length 0
  WebClient's first packet:
    08:39:48.796371 IP (tos 0x0, ttl 64, id 52777, offset 0, flags [DF],
proto TCP (6), length 52, bad cksum 0 (->6e98)!)
    127.0.0.1.54859 > 127.0.0.1.2002: Flags [F.], cksum 0xfe28 (incorrect ->
0xa0fd), seq 964011037, ack 1862845032, win 65535, options [nop,nop,TS val
1034893560 ecr 1034892868], length 0

Any packet guru know what this means?

Thanks for the support so far - I'm really wanting to get this project up
and this seems like progress!!!
Sean

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