| Subject | English | German |
| commun. | exterior gateway protocol | Exterior-Gateway-Protocol |
| commun. | gateway protocol | Kommunikationsprotokoll (international vtx, e.g. EHKP for FRG, Prestel for GB, Teletel for FR) |
| commun. | gateway-to-gateway protocol | Gateway-to-Gateway-Protokoll |
| commun. | interior gateway protocol | Interior-Gateway-Protocol |