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Serial connection

It is not trivial to run online nncp-daemon, nncp-call and nncp-caller commands over the serial link, because it is link without built-in error detection. For efficient usage you have to use some kind of window-sliding error correction protocol, like Kermit, ZMODEM, UUCP’s g-protocol and similar well known ones.

However TCP is already satisfying and existing protocol for the same purposes. So it would be more easier to bring up the IP interconnection and use TCP over it. Most distributions already have PPP protocol out-of-box.

Ordinary man page for ppp in FreeBSD is enough for being able to setup it:

That configuration does not negotiate any kind of IPv4 addresses, routing or DNS servers. Also all compression is turned off, because NNCP’s traffic is encrypted and uncompressible. Only IPV6CP will negotiate IPv6 link-local addresses, on which you can run multicast discovered daemons for simplicity.


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