Manual:IPv6 PD over PPP

Applies to RouterOS: v5.9

Summary

This example demonstrates how to set up PPPoE server and client to use IPv6 Prefix Delegation.

Starting from v5.9 IPv6 Prefixes can be delegated over ppp interfaces. When client connects, ppp will automatically add dynamic DHCPv6-PD server. This allows to run dhcpv6 client on ppp interfaces.

Configuration

Server

There is a new parameter in ppp profile called dhcpv6-pd-pool used to enable PPP-PD. PPP will use specified IPv6 pool to create dynamic DHCP server.

So first step is to add IPv6 pool:

/ipv6 pool
add name=myPool prefix=2001:db8:7501:ff00::/60 prefix-length=62

Now we can configure ppp profile and add pppoe server

/ppp profile set default dhcpv6-pd-pool=myPool

/interface pppoe-server server 
add service-name=test interface=ether1

Client

On client side we need to set up pppoe-client interface and run dhcp client on it.

/interface pppoe-client
add name=client-test interface=ether1 user=a1 service-name=test

/ipv6 dhcp-client 
add interface=client-test pool-name=ppp-test pool-prefix-length=64

Testing status

On server side check if dynamic DHCP server is added and prefix is bound to specific client:

[admin@RB1100] /ipv6 dhcp-server> print 
Flags: D - dynamic, X - disabled, I - invalid 
 #    NAME              INTERFACE            ADDRESS-POOL            LEASE-TIME
 0 D  <pppoe-a1>        <pppoe-a1>           myPool                  3d        

[admin@RB1100] /ipv6 dhcp-server binding> print 
Flags: X - disabled, D - dynamic 
 #   ADDRESS                                        DU       IAID SER.. STATUS 
 1 D 2001:db8:7501:ff04::/62                                  247 <pp.. bound  

On client side check if dhcp client is bound and pool is added

[admin@x86-test] /ipv6 dhcp-client> print 
Flags: D - dynamic, X - disabled, I - invalid 
 #    INTERFACE           STATUS        PREFIX                            EXPIRES-AFTER  
0    client-test          bound         2001:db8:7501:ff04::/62           2d23h18m17s  

[admin@x86-test] /ipv6 pool> print 
Flags: D - dynamic 
 #   NAME                        PREFIX                                   PREFIX-LENGTH
 0 D ppp-test                    2001:db8:7501:ff04::/62                             64

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