RE: SNA OVER TCP/IP

["Brendan Bispham" <midrangel@xxxxxxxxxxxxxxxxxx>]

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...

Any ideas?

Ta,

Brendan

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