Host Ports
RFC 667
This RFC is labeled as "Legacy"; it was published before a formal source was recorded.
This RFC is not endorsed by the IETF and has no formal standing in the
IETF standards process.
| Document | Type | RFC - Unknown (December 1974) | |
|---|---|---|---|
| Author | S.G. Chipman | ||
| Last updated | 2026-05-20 | ||
| RFC stream | Legacy | ||
| Formats | |||
| IESG | Responsible AD | (None) | |
| Send notices to | (None) |
RFC 667
Network Working Group S. Chipman
Request for Comments: 667 BBN-TENEX
NIC: 31422 December 1974
Host Ports
The following is the approved scheme to connect our computers to the
network. This configuration will become effective December 18, 1974.
__________________
| PDP-11 |
| SPEECH FRONT END |________
| 50.=62(8) | __|_________
|__________________| | |
__________________ | IMP-50 |________\ NCC-TIP
| PDP-10 | |____________| /
| SYSTEM D |________| | |
| 114.=162(8) | | |
|__________________| | |________________________
__________________ | |
| PDP-10 | | |
| SYSTEM A |________ | |
| 197.=305(8) | | | |
|__________________| | | |
__________________ __|___|_____ |
| PDP-11 | | | |
| LPT |_____| IMP-5 |________\ CCA |
| 69.=105(8) | |____________| / |
|__________________| | | |
__________________ | | |
| PDP-11 | | | |
| PACKET RADIO |________| | |
| 133.=205(8) | | |
|__________________| | |
__________________ | ________________________|
| PDP-10 | | |
| SYSTEM B |________ | |
| 49.=61(8) | __|___|___|_ ____________
|__________________| | 49 |_____| 161 |
__________________ | BBN10X-TIP | VDH | ANALOG TIP | Local
| PDP-10 | |____________| |____________| Terminals
| SYSTEM C |________|
| 241.=361(8) |
|__________________|
Chipman [Page 1]
RFC 667 Host Ports December 1974
All host interfaces are local (except host number 005 which is an
easily convertible local/distant interface and we have been asked by
Div 6 to avoid using it so Div 6 can more easily check out PDP-10 IMP
interfaces). The PDP-11 with the line printer is intentionally on
host 105 so that a simple minded program can respond when someone
tries to ICP to its logger socket "To login to BBN (System C) use
host number 241(10)".
[ This RFC was put into machine readable form for entry ]
[ into the online RFC archives by Alex McKenzie with ]
[ support from GTE, formerly BBN Corp. 2/2000 ]
Chipman [Page 2]