tcpdump/bpf and seeing .1q tags

Charlie Schluting charlie at schluting.com
Wed Mar 9 19:28:59 PST 2005


Kelly Yancey wrote:
> 
>   You'll have a similar issue with BPF programs you write: you'll either
> need to skip over the vlan tag header or not, depending on whether you
> snagged the packet from the parent interface or the vlan interface.


Indeed. Thanks!
We skipped 12 bits ahead and everything is working now :))

-Charlie


More information about the freebsd-net mailing list