News: This forum is now permanently frozen.
Pages: [1]
Topic: DHCPv6 over PPPoE  (Read 3916 times)
« on: June 08, 2011, 02:53:06 »
Psi *
Posts: 3

Hi,  what's the correct way to enable DHCPv6 over a PPPoE connection in monowall 1.33.

Currently it doesn't let you set IPv6 to DHCP if you have the WAN set to PPPoE.
(It gives the following error if you try it... "IPv6 DHCP mode can only be used in conjunction with static or DHCP" )

I've tried setting ipv6 mode to "PPP" but dhcp6c doesn't seem to start.
The only ipv6 related info in the log is...

IPV6CP: rec'd Configure Request #2 (Ack-Rcvd)
IPV6CP: SendConfigAck #2   
IPV6CP: state change Ack-Rcvd --> Opened   
IPV6CP: LayerUp   

« Reply #1 on: June 08, 2011, 09:55:18 »
Manuel Kasper
Posts: 364

With DHCPv6 on DSL lines, usually only Prefix Delegation (PD) is used. That is, the IP address to use on the WAN interface itself is still configured using SLAAC (and usually the WAN IPv6 address doesn't even matter much; a link local address is sufficient) and not using DHCPv6-NA.

So here's what you need to do: set your WAN IPv6 type to PPP, and on the LAN (and any optional interfaces you would like to use), set the IPv6 mode to DHCP-PD, choose a unique SLA ID per interface (e.g. start with 1 for LAN) and set "ISP prefix length" to the length of the prefix that will be delegated to you by your ISP (often 56 or 48).

Works fine for me against a Cisco LNS...
« Reply #2 on: June 08, 2011, 14:20:35 »
Psi *
Posts: 3

thank you soo much,  that fixed it. Just had to enable LAN DHCP-PD and everything came to life.

Pages: [1]
Powered by SMF 1.1.20 | SMF © 2013, Simple Machines