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* The argument to src_ip, dst_ip, enc_src_ip and enc_dst_ip take an
optional prefix length which is used to provide a mask to limit the scope
of matching.
* This is documented as a PREFIX in keeping with ip-route(8).
Example of uses of IPv4 and IPv6 prefixes
tc qdisc add dev eth0 ingress
tc filter add dev eth0 protocol ip parent ffff: flower \
indev eth0 dst_ip 192.168.1.1 action drop
tc filter add dev eth0 protocol ip parent ffff: flower \
indev eth0 src_ip 10.0.0.0/8 action drop
tc filter add dev eth0 protocol ipv6 parent ffff: flower \
indev eth0 src_ip 2001:DB8:1::/48 action drop
tc filter add dev eth0 protocol ipv6 parent ffff: flower \
indev eth0 dst_ip 2001:DB8::1 action drop
Signed-off-by: Simon Horman <simon.horman@netronome.com>
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