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path: root/Documentation/networking/vrf.txt (follow)
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2017-01-30net: Avoid receiving packets with an l3mdev on unbound UDP socketsRobert Shearman1-3/+4
Packets arriving in a VRF currently are delivered to UDP sockets that aren't bound to any interface. TCP defaults to not delivering packets arriving in a VRF to unbound sockets. IP route lookup and socket transmit both assume that unbound means using the default table and UDP applications that haven't been changed to be aware of VRFs may not function correctly in this case since they may not be able to handle overlapping IP address ranges, or be able to send packets back to the original sender if required. So add a sysctl, udp_l3mdev_accept, to control this behaviour with it being analgous to the existing tcp_l3mdev_accept, namely to allow a process to have a VRF-global listen socket. Have this default to off as this is the behaviour that users will expect, given that there is no explicit mechanism to set unmodified VRF-unaware application into a default VRF. Signed-off-by: Robert Shearman <rshearma@brocade.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Tested-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13net: vrf: Address comments from last documentation updateDavid Ahern1-3/+3
Comments from Frank Kellerman on last doc update: - extra whitespace in front of a neigh show command - convert the brief link example to 'vrf red' Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13net: vrf: Documentation updateDavid Ahern1-98/+103
Update vrf documentation for changes made to 4.4 - 4.8 kernels and iproute2 support for vrf keyword. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-28Documentation: networking: fix spelling mistakesEric Engestrom1-1/+1
Signed-off-by: Eric Engestrom <eric@engestrom.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-13net: vrf: Documentation update, ip commandsDavid Ahern1-2/+299
Add ip commands with examples for creating VRF devics, enslaving interfaces and dumping VRF-focused data (address, neighbors, routes). Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-17net: Add documentation for VRF deviceDavid Ahern1-0/+96
Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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