IDNetters Forums

I have my IDnet IPv4 working fine, but cannot get IPv6 assigned

Trying to use dhclient with command
dhclient -6 -d -cf /etc/dhcp/IDnIPv6.conf -P --prefix-len-hint 48 eth1

IDnIPv6.conf  just

  request;
  send dhcp-client-identifier "FTTH.91961@idnet";

Is keeps trying

Listening on Socket/eth1
Sending on   Socket/eth1
PRC: Soliciting for leases (INIT).
XMT: Forming Solicit, 0 ms elapsed.
XMT:  X-- IA_PD 5c:d4:11:c5
XMT:  | X-- Request renew in  +3600
XMT:  | X-- Request rebind in +5400
XMT: Solicit on eth1, interval 1060ms.

forever

---.--
This is a Debian Linux box as the router

eth1 is the PPPoE connection ppp1 to the ONT
  or eth1.911 which is up and running

my local LAN is on eth0

I have other IPv6 addresses live and working

---.---
># ip add sh dev ppp1

ppp1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1492
    qdisc fq_codel state UNKNOWN group default qlen 3    link/ppp

  inet 212.xx.xx.50 peer 212.69.63.19/32 scope global ppp1
  inet6 fe80::18a8:552f:6ab3:bbdc peer fe80::4e4e:35ff:fed6:e400/128 scope link

Thanks in anticipation

That's because you need to do it at the PPP level:

~# more /etc/ppp/peers/dsl-provider
# Minimalistic default options file for DSL/PPPoE connections

noipdefault
defaultroute
replacedefaultroute
hide-password
noauth
persist
maxfail 0
plugin rp-pppoe.so eth1
+ipv6 ipv6cp-use-ipaddr
# debug
user "accountname@idnet.gw6"

And then you advertise a route internally:

# more /etc/radvd.conf
interface br0 {
        IgnoreIfMissing on;
        AdvSendAdvert on;
        AdvLinkMTU 1280;
        prefix 2A02:390:XXXX:XXXX::/64
        {
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr off;
        };
};

And don't forget to add forwarding and appropriate filtering. I'm using foomuuri.

Adding some traffic shaping using "cake" might help with the bufferbloat problem too.

My "cake" script is:

#!/bin/bash
set -x

DOWN="50.0Mbit"
UP="10.0MBit"

ext=ppp0
ifb=ifb4${ext}

# egress
tc qdisc delete root dev $ext
tc qdisc add root dev $ext cake bandwidth $UP pppoe-vcmux nat

# ingress
ip link add name $ifb type ifb
tc qdisc del dev $ext ingress
tc qdisc add dev $ext handle ffff: ingress
tc qdisc del dev $ifb root
tc qdisc add dev $ifb root cake bandwidth $DOWN besteffort
ifconfig $ifb up
# if you don't bring the device up your connection
# will lock up on the next step.
tc filter add dev $ext parent ffff: protocol all \
  prio 10 u32 match u32 0 0 flowid 1:1 action mirred egress \
  redirect dev $ifb

Adjust the up/down numbers to match the service level you've got. In the middle of July I'll be bumping those numbers up to 100/20 (and saving about £2 a year).