In addition to the network map above, you may find the following network address and host address information handy as you read through the various examples and documentation based on this fictional network.
Table A.1. Example Network; Network Addressing
| network address | function |
|---|---|
| 205.254.211.0/24 | public ISP-allocated network |
| 192.168.100.0/24 | internal server network |
| 192.168.99.0/24 | main office desktop network |
| 192.168.98.0/24 | branch office desktop network |
Host addressing information is summarized in this table. follows.
Table A.2. Example Network; Host Addressing
| hostname | interface | IP address | MAC address |
|---|---|---|---|
| isolde | eth0 | 192.168.100.17/24 | 00:80:c8:e8:4b:8e |
| tristan | eth0 | 192.168.99.35/24 | 00:80:c8:f8:4a:51 |
| morgan | eth0 | 192.168.98.82/24 | 00:80:c8:f8:4a:53 |
| masq-gw | eth0 | 192.168.100.254/24 | 00:80:c8:f8:5c:71 |
| masq-gw | eth1 | 205.254.211.179/24 | 00:80:c8:f8:5c:72 |
| masq-gw | eth2 | 192.168.99.254/24 | 00:80:c8:f8:5c:73 |
| masq-gw | eth3 | 192.168.100.2/30 | 00:80:c8:f8:5c:74 |
| wan-gw | eth0 | 205.254.211.254/24 | [ unknown ] |
| wan-gw | wan0 | 205.254.209.73/30 | [ n/a ] |
| isdn-router | (Ethernet) | 192.168.99.1/24 | 00:c0:7b:45:6a:39 |
| branch-router | (Ethernet) | 192.168.98.254/24 | 00:c0:7b:37:af:91 |
| service-router | (Ethernet) | 192.168.100.1/24 | 00:c0:7b:7d:00:c8 |
I have referred liberally to this example network throughout this documentation. Any example commands in the documentation assume the network configuration as shown on this network map.
Additionally, hosts which are not part of this (fictional) network but appear in the documentation will appear under the names real-server and real-client. This convention exists simply to disambiguate real-world examples from the machines in the fictional network.