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
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