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| author | Tom Herbert <tom@herbertland.com> | 2015-07-09 02:58:22 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-10 07:09:10 +0300 |
| commit | 35a256fee52c7c207796302681fa95189c85b408 (patch) | |
| tree | c6f4e37117bfe3423b095e55073d9c2ed337c176 /Documentation | |
| parent | 5a10ececc60c469d0641531589ccc38a768e0d07 (diff) | |
| download | linux-35a256fee52c7c207796302681fa95189c85b408.tar.xz | |
ipv6: Nonlocal bind
Add support to allow non-local binds similar to how this was done for IPv4.
Non-local binds are very useful in emulating the Internet in a box, etc.
This add the ip_nonlocal_bind sysctl under ipv6.
Testing:
Set up nonlocal binding and receive routing on a host, e.g.:
ip -6 rule add from ::/0 iif eth0 lookup 200
ip -6 route add local 2001:0:0:1::/64 dev lo proto kernel scope host table 200
sysctl -w net.ipv6.ip_nonlocal_bind=1
Set up routing to 2001:0:0:1::/64 on peer to go to first host
ping6 -I 2001:0:0:1::1 peer-address -- to verify
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 5fae7704daab..f63aeefd2c24 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -1435,6 +1435,11 @@ mtu - INTEGER Default Maximum Transfer Unit Default: 1280 (IPv6 required minimum) +ip_nonlocal_bind - BOOLEAN + If set, allows processes to bind() to non-local IPv6 addresses, + which can be quite useful - but may break some applications. + Default: 0 + router_probe_interval - INTEGER Minimum interval (in seconds) between Router Probing described in RFC4191. |