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Special Forums IP Networking IPv6 address block assign/associate with an interface Post 302899818 by redwil on Thursday 1st of May 2014 08:42:00 PM
Old 05-01-2014
Thank you

Assuming only the traffic (which is destined to a contiguous address IPv6 block say a /64) reaches an interface (physical or virtual) by means of routing and/or filtering rules. The original question remains.

BTW: I know both BSD and Linux have ways of assigning IPs to an interface.

Let's stick with Linux for now.

I have a block of IPv6 addresess (say 1111::/64) that I routed and filtered such that only these addresses hit eth0.

then I know I can for instance say
Code:
ip addr add 1111::1/64 dev eth0
ip addr add 1111::2/64 dev eth0

and so on up to
Code:
ip addr add 1111::ffff:ffff:ffff:fffe dev eth0

which I believe it becomes unmanageable hence the original question.

Any other suggestion or hints besides using a raw socket and implementing my own stack which is doable but I do not really want to reinvent the wheel since all that is already in the kernel.

Thanks
 

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Match-all classifier in tc(8)					       Linux					     Match-all classifier in tc(8)

NAME
matchall - traffic control filter that matches every packet SYNOPSIS
tc filter ... matchall [ skip_sw | skip_hw ] [ action ACTION_SPEC ] [ classid CLASSID ] DESCRIPTION
The matchall filter allows to classify every packet that flows on the port and run a action on it. OPTIONS
action ACTION_SPEC Apply an action from the generic actions framework on matching packets. classid CLASSID Push matching packets into the class identified by CLASSID. skip_sw Do not process filter by software. If hardware has no offload support for this filter, or TC offload is not enabled for the inter- face, operation will fail. skip_hw Do not process filter by hardware. EXAMPLES
To create ingress mirroring from port eth1 to port eth2: tc qdisc add dev eth1 handle ffff: ingress tc filter add dev eth1 parent ffff: matchall skip_sw action mirred egress mirror dev eth2 The first command creats an ingress qdisc with handle ffff: on device eth1 where the second command attaches a matchall filters on it that mirrors the packets to device eth2. To create egress mirroring from port eth1 to port eth2: tc qdisc add dev eth1 handle 1: root prio tc filter add dev eth1 parent 1: matchall skip_sw action mirred egress mirror dev eth2 The first command creats an egress qdisc with handle 1: that replaces the root qdisc on device eth1 where the second command attaches a matchall filters on it that mirrors the packets to device eth2. To sample one of every 100 packets flowing into interface eth0 to psample group 12: tc qdisc add dev eth0 handle ffff: ingress tc filter add dev eth0 parent ffff: matchall action sample rate 100 group 12 SEE ALSO
tc(8), iproute2 21 Oct 2015 Match-all classifier in tc(8)
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