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1da177e4 LT |
1 | |
2 | IP-Aliasing: | |
3 | ============ | |
4 | ||
5 | IP-aliases are additional IP-addresses/masks hooked up to a base | |
6 | interface by adding a colon and a string when running ifconfig. | |
7 | This string is usually numeric, but this is not a must. | |
8 | ||
9 | IP-Aliases are avail if CONFIG_INET (`standard' IPv4 networking) | |
10 | is configured in the kernel. | |
11 | ||
12 | ||
13 | o Alias creation. | |
14 | Alias creation is done by 'magic' interface naming: eg. to create a | |
15 | 200.1.1.1 alias for eth0 ... | |
16 | ||
17 | # ifconfig eth0:0 200.1.1.1 etc,etc.... | |
18 | ~~ -> request alias #0 creation (if not yet exists) for eth0 | |
19 | ||
20 | The corresponding route is also set up by this command. | |
21 | Please note: The route always points to the base interface. | |
22 | ||
23 | ||
24 | o Alias deletion. | |
25 | The alias is removed by shutting the alias down: | |
26 | ||
27 | # ifconfig eth0:0 down | |
28 | ~~~~~~~~~~ -> will delete alias | |
29 | ||
30 | ||
31 | o Alias (re-)configuring | |
32 | ||
33 | Aliases are not real devices, but programs should be able to configure and | |
34 | refer to them as usual (ifconfig, route, etc). | |
35 | ||
36 | ||
37 | o Relationship with main device | |
38 | ||
39 | If the base device is shut down the added aliases will be deleted | |
40 | too. | |
41 | ||
42 | ||
43 | Contact | |
44 | ------- | |
45 | Please finger or e-mail me: | |
46 | Juan Jose Ciarlante <jjciarla@raiz.uncu.edu.ar> | |
47 | ||
48 | Updated by Erik Schoenfelder <schoenfr@gaertner.DE> | |
49 | ||
50 | ; local variables: | |
51 | ; mode: indented-text | |
52 | ; mode: auto-fill | |
53 | ; end: |