[ih] Exterior Gateway Protocol

[Jeremy C. Reed]

> Does anyone know of any surviving implementations of Exterior Gateway
> Protocol, BGP's predecessor.

(I don't know about it, but ...)

See net1 tarball at
https://www.tuhs.org/Archive/Distributions/UCB/

egp/ directory has code and notes for 4.2BSD and 4.3BSD including:

/* "egpup" is a user process that implements the Exterior Gateway Protocol 
 * under Unix 4.2 BSD according to the spec. in RFC 888 and 904.
...

(Be sure to see egp-notes for history, examples and more.)