| 0 | connected interface |
| 1 | Static route |
| 20 | External BGP |
| 90 | Internal EIGRP |
| 100 | IGRP |
| 110 | OSPF |
| 115 | IS-IS |
| 120 | Routing Information Protocol (RIP) |
| 140 | Exterior Gateway Protocol (EGP) |
| 170 | External EIGRP |
| 200 | Internal BGP |
| 255 | Unknown and unused |
| 0 | connected interface |
| 1 | Static route |
| 20 | External BGP |
| 90 | Internal EIGRP |
| 100 | IGRP |
| 110 | OSPF |
| 115 | IS-IS |
| 120 | Routing Information Protocol (RIP) |
| 140 | Exterior Gateway Protocol (EGP) |
| 170 | External EIGRP |
| 200 | Internal BGP |
| 255 | Unknown and unused |