Date: Fri, 08 Nov 2013 02:11:49 -0330 From: Bear <jilingshu@gmail.com> To: freebsd-net@freebsd.org Subject: ng_patch and 802.11Q Message-ID: <527C799D.8020208@Gmail.com>
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Hi all, I want to modify VLAN priority by ng_patch. After reading the manpage of ng_patch(http://www.freebsd.org/cgi/man.cgi?query=ng_patch) and the example it given: > /usr/sbin/ngctl -f- <<-SEQ > mkpeer ipfw: patch 200 in > name ipfw:200 ttl_add > msg ttl_add: setconfig { count=1 csum_flags=1 ops=[ \ > { mode=2 value=3 length=1 offset=8 } ] } > SEQ > /sbin/ipfw add 150 netgraph 200 ip from any to simplex.remote.net It seems ng_patch can only modify IP header. However, the position of VLAN header is before IP header and after Ethernet header. How can I modify it? Thanks in advanced.
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