CONTENTS

DESCRIPTION

Meta Syntax

Interface specification

Configuration Statements

EXAMPLES

If you want to assign prefixes beginning with 3ffe:501:ffff::/48 to each subnet, then following configuration will be enough, if each of your routers supports IPv6 multicast forwarding. The subnet number of the existing fec0:0:0::/48 prefix and the newly assigned 3ffe:501:ffff::/48 prefix will be same.
dest ff05::2;

add match-prefix fec0:0:0:: /48 use-prefix 3ffe:501:ffff:: /48 keeplen 16;

If your routers do not support IPv6 multicast forwarding, you will need to specify each destination at dest command.
dest fec0:0:0:1:260:8ff:fe24:fb3a fec0:0:0:2:200:eff:fe2e:dfe1 fec0:0:0:3:5254:ff:fedc:5217;

add match-prefix fec0:0:0:: /48 use-prefix 3ffe:501:ffff:: /48 keeplen 16;

If you are going to do renumbering, then following procedure will be natural.

1. Assign a new prefix.
2. Set old prefix lifetimes to some appropriate transition period. In the following example we use 1 week for valid lifetime, and 0 for preferred lifetime. Also, enable old prefix lifetime expiration (By default, it is static and does not expire).
3. After the transition period, old prefixes should become invalid, and may have been deleted. To make sure that they are deleted, send new router renumbering message, which specifies old prefixes as match prefix, and no use prefix.

The following configuration file will do 1 and 2.
dest ff05::2;

seqnum 0 {
add match-prefix fec0:0:0:: /48 use-prefix 3ffe:501:fffe:: /48 keeplen 16;
};

seqnum 1 {
change match-prefix 3ffe:501:ffff:: /48 use-prefix 3ffe:501:ffff:: /48 keeplen 16 vltime d7 pltime 0 rrf_decrvalid on rrf_decrprefd on;
};

And the following configuration file will do 3 (should be used for the router renumbering message to be sent 1 week afterward).
dest ff05::2;

change match-prefix 3ffe:501:ffff:: /48;

HISTORY