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  • Subject: Re: SNA OVER TCP/IP
  • From: Larry Bolhuis <lbolhuis@xxxxxxxxxx>
  • Date: Tue, 10 Oct 2000 11:50:51 -0400
  • Organization: Arbor Solutions, Inc

Actually the Anynet trick should work. Anynet uses port 397 UDP and TCP
so if that's open you should be good to go. Once Anynet is up between
the boxes then STRPASTHR works fine. I have done this but we were not
dealing with blocked ports at the time. 
 HTH - Larry

Brendan Bispham wrote:
> 
> Whilst we're on the subject, can someone help on a different problem:
> 
> I have a TCP connection between two AS400s over the internet. However one
> AS400 is using an ISP that seems to block all incoming requests to telnet
> etc.  So Telnet etc from one AS400 to the other is possible, but Telnet the
> other way doesnt work. Other ISPs work fine, but this one's free of charge,
> so they want to keep it if possible.
> 
> I thought that Anynet would help.. this was my reasoning:
> 
> The AS400 with the restrictive ISP makes an SNA connection over a single
> port. Passthrough, DDM etc work fine. The link is kept open, and the other
> AS400 can use the 'open' SNA connection to passthrough back.
> 
> Obviously, this is the basis of an point-to-point connection - either side
> can establish it, and then both can use it.
> 
> However it doesnt work, possibly because it's not really PtP, but my
> understanding of TCP stops just about there. I've looked at tunnelling
> software, but it hasn't convinced me that it allows 2-way conversations
> yet...
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