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Diffstat (limited to 'doc/payload-expression.txt')
| -rw-r--r-- | doc/payload-expression.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/payload-expression.txt b/doc/payload-expression.txt index 106ff74c..113f5bfc 100644 --- a/doc/payload-expression.txt +++ b/doc/payload-expression.txt @@ -23,6 +23,14 @@ VLAN HEADER EXPRESSION [verse] *vlan* {*id* | *dei* | *pcp* | *type*} +The vlan expression is used to match on the vlan header fields. +This expression will not work in the *ip*, *ip6* and *inet* families, +unless the vlan interface is configured with the *reorder_hdr off* setting. +The default is *reorder_hdr on* which will automatically remove the vlan tag +from the packet. See ip-link(8) for more information. +For these families its easier to match the vlan interface name +instead, using the *meta iif* or *meta iifname* expression. + .VLAN header expression [options="header"] |================== |