| commit | ee34c1eb35923cc98b1c47488a615bf51a2a2afb | |
| author | Michal Schmidt <mschmidt@redhat.com> | |
| Thu, 13 Dec 2007 17:46:32 +0000 (13 09:46 -0800) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Mon, 28 Jan 2008 22:57:56 +0000 (28 14:57 -0800) | ||
| tree | 882a6b0d4645e1d070a2474f227d5e341339ef25 | treesnapshot (tar.gz zip) |
| parent | 528c4ceb427dad4a3893ba3d1913782efae0cd0e | commitdiff |
[IP_GRE]: Rebinding of GRE tunnels to other interfaces
This is similar to the change already done for IPIP tunnels.
Once created, a GRE tunnel can't be bound to another device.
To reproduce:
# create a tunnel:
ip tunnel add tunneltest0 mode gre remote 10.0.0.1 dev eth0
# try to change the bounding device from eth0 to eth1:
ip tunnel change tunneltest0 dev eth1
# show the result:
ip tunnel show tunneltest0
tunneltest0: gre/ip remote 10.0.0.1 local any dev eth0 ttl inherit
Notice the bound device has not changed from eth0 to eth1.
This patch fixes it. When changing the binding, it also recalculates the
MTU according to the new bound device's MTU.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is similar to the change already done for IPIP tunnels.
Once created, a GRE tunnel can't be bound to another device.
To reproduce:
# create a tunnel:
ip tunnel add tunneltest0 mode gre remote 10.0.0.1 dev eth0
# try to change the bounding device from eth0 to eth1:
ip tunnel change tunneltest0 dev eth1
# show the result:
ip tunnel show tunneltest0
tunneltest0: gre/ip remote 10.0.0.1 local any dev eth0 ttl inherit
Notice the bound device has not changed from eth0 to eth1.
This patch fixes it. When changing the binding, it also recalculates the
MTU according to the new bound device's MTU.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/ipv4/ip_gre.c | diffblobblamehistory |