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IPv6: Add 'autoconf' and 'disable_ipv6' module parameters

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Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module.

The first controls if IPv6 addresses are autoconfigured from
prefixes received in Router Advertisements.  The IPv6 loopback
(::1) and link-local addresses are still configured.

The second controls if IPv6 addresses are desired at all.  No
IPv6 addresses will be added to any interfaces.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Brian Haley
2009-06-01 03:07:33 -07:00
committed by David S. Miller
parent 0220ff7fc3
commit 56d417b12e
5 changed files with 145 additions and 10 deletions
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7
Documentation/networking/ip-sysctl.txt
View File

@@ -1057,6 +1057,13 @@ disable_ipv6 - BOOLEAN
address.
Default: FALSE (enable IPv6 operation)
When this value is changed from 1 to 0 (IPv6 is being enabled),
it will dynamically create a link-local address on the given
interface and start Duplicate Address Detection, if necessary.
When this value is changed from 0 to 1 (IPv6 is being disabled),
it will dynamically delete all address on the given interface.
accept_dad - INTEGER
Whether to accept DAD (Duplicate Address Detection).
0: Disable DAD

37
Documentation/networking/ipv6.txt
View File

@@ -33,3 +33,40 @@ disable
A reboot is required to enable IPv6.
autoconf
Specifies whether to enable IPv6 address autoconfiguration
on all interfaces. This might be used when one does not wish
for addresses to be automatically generated from prefixes
received in Router Advertisements.
The possible values and their effects are:
0
IPv6 address autoconfiguration is disabled on all interfaces.
Only the IPv6 loopback address (::1) and link-local addresses
will be added to interfaces.
1
IPv6 address autoconfiguration is enabled on all interfaces.
This is the default value.
disable_ipv6
Specifies whether to disable IPv6 on all interfaces.
This might be used when no IPv6 addresses are desired.
The possible values and their effects are:
0
IPv6 is enabled on all interfaces.
This is the default value.
1
IPv6 is disabled on all interfaces.
No IPv6 addresses will be added to interfaces.