tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1
2IP-Aliasing:
3============
4
5IP-aliases are additional IP-addresses/masks hooked up to a base
6interface by adding a colon and a string when running ifconfig.
7This string is usually numeric, but this is not a must.
8
9IP-Aliases are avail if CONFIG_INET (`standard' IPv4 networking)
10is configured in the kernel.
11
12
13o 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
24o Alias deletion.
25 The alias is removed by shutting the alias down:
26
27 # ifconfig eth0:0 down
28 ~~~~~~~~~~ -> will delete alias
29
30
31o 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
37o Relationship with main device
38
39 If the base device is shut down the added aliases will be deleted
40 too.
41
42
43Contact
44-------
45Please finger or e-mail me:
46 Juan Jose Ciarlante <jjciarla@raiz.uncu.edu.ar>
47
48Updated by Erik Schoenfelder <schoenfr@gaertner.DE>
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