barcaroller
2014-05-03 02:17:34 UTC
In regards to the various methods of IPv4 packets encapsulating IPv6
packets (6in4, Teredo, 6rd, 6to4, etc): is it possible to set a BPF to
filter on BOTH IP addresses (that of the encapsulating packet and that
of the encapsulated packet) without using the cumbersome method of
calculating offsets (e.g. ip[x:y])? Similar to what the vlan keyword
does in BPF expressions.
Thanks much.
packets (6in4, Teredo, 6rd, 6to4, etc): is it possible to set a BPF to
filter on BOTH IP addresses (that of the encapsulating packet and that
of the encapsulated packet) without using the cumbersome method of
calculating offsets (e.g. ip[x:y])? Similar to what the vlan keyword
does in BPF expressions.
Thanks much.