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| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/networking/alias.txt | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/Documentation/networking/alias.txt')
| -rw-r--r-- | kernel/Documentation/networking/alias.txt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/Documentation/networking/alias.txt b/kernel/Documentation/networking/alias.txt new file mode 100644 index 000000000..85046f53f --- /dev/null +++ b/kernel/Documentation/networking/alias.txt @@ -0,0 +1,40 @@ + +IP-Aliasing: +============ + +IP-aliases are an obsolete way to manage multiple IP-addresses/masks +per interface. Newer tools such as iproute2 support multiple +address/prefixes per interface, but aliases are still supported +for backwards compatibility. + +An alias is formed by adding a colon and a string when running ifconfig. +This string is usually numeric, but this is not a must. + +o Alias creation. + Alias creation is done by 'magic' interface naming: eg. to create a + 200.1.1.1 alias for eth0 ... + + # ifconfig eth0:0 200.1.1.1 etc,etc.... + ~~ -> request alias #0 creation (if not yet exists) for eth0 + + The corresponding route is also set up by this command. + Please note: The route always points to the base interface. + + +o Alias deletion. + The alias is removed by shutting the alias down: + + # ifconfig eth0:0 down + ~~~~~~~~~~ -> will delete alias + + +o Alias (re-)configuring + + Aliases are not real devices, but programs should be able to configure and + refer to them as usual (ifconfig, route, etc). + + +o Relationship with main device + + If the base device is shut down the added aliases will be deleted + too. |