diff options
author | Jon Loeliger <jdl@netgate.com> | 2019-12-19 09:03:52 -0600 |
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committer | John Lo <loj@cisco.com> | 2019-12-19 19:44:54 +0000 |
commit | b22e1f06bbebc48ec72ce8effa529e69ffbb12ca (patch) | |
tree | eede5ef8299286c1b9362ea0325151225ebc9e01 /src/vlib/unix/cj.h | |
parent | b4f073cd44d308ec1b9d582f8e4ca2ee3c1bf9b6 (diff) |
interface: Prevent bad inner-dot1q any exact-match configuration
Someone much more knowledgeable than I wrote:
For L3 IP forwarding, any VLAN tags on a packet must be exact
match to a sub-interface which means both outer and inner VLAN
tag IDs must be exact-matched to specific values defined of that
sub-interface. Without exact match on a L3 sub-interface, VPP
has no mechanism to know what VLAN tags to use for packet output,
such as ARP request packets or IP packets, on that sub-interface.
Thus, sub-interface with "inner-dot1q any" is not an exact match
sub-interface by definition since no match is present on inner
tag.
While in the area, fix a memory leak that would ensue on poorly
configured interfaces.
Change-Id: I8d17a96dbca3e3724c297ecc935ca61764e6ce2e
Type: fix
Signed-off-by: Jon Loeliger <jdl@netgate.com>
Diffstat (limited to 'src/vlib/unix/cj.h')
0 files changed, 0 insertions, 0 deletions