> 
> James Newton, Host wrote:
> > I would really love to have someone who really knows what they are 
> > doing help troubleshoot this. So far I've come up with the 
> following 
> > script to aid in troubleshooting:
> > 
> 
> I have a vague idea about what might be happening. There are two
> possibilities: some ISP invisible proxy that messes things up 
> (at least the one my ISP uses is fine), or data 
> transmission/routing issues. I think it might me MTU issues. 
> The headers are small, they get sent in one packet. Then, the 
> content arrives in large chunks. If the MTU is too high, AND 
> some router in between doesn't know how to break the packet 
> in chunks, OR the DF (Dont' Fragment) bit gets set in the IP 
> packet, that kind of stuff will happen. This happened to a 
> spanish ISP once, and got everyone pissed off (some 
> misconfiguration somewhere). The fix at the time was to lower 
> the MTU. The issue with the PIClist headers not working but 
> quickstepper working might be similar.
> 
> Unfortunately I haven't had any problems so I can do no 
> testing here, but I offer to help wherever I can (someone 
> with the problem opening up an SSH server on a linux box with 
> decent network sniffing/debugging tools would help ;-)
> 
> 
> --
> Hector Martin (hector@marcansoft.com)
> Public Key: http://www.marcansoft.com/hector.asc

Bless you! 

Could it be that the MTU or DF bit is wrong from the piclist.com server?
Would it still get through on most networks?

Are there any of those tools that are available on Windows machines?

---
James Newton: PICList webmaster/Admin
mailto:jamesnewton@piclist.com  1-619-652-0593 phone
http://www.piclist.com/member/JMN-EFP-786
PIC/PICList FAQ: http://www.piclist.com

 


-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist