- My DSL provider allocates /56 IPv6 network via PPPoE using IA_PD allocation
- The PPPoE client receives the allocation but information about the prefix is not available in the output of show interfaces command.
- The only way I managed to find it is in the dhcp6c log.
Here are examples:
r2# show interfaces
ethernet eth1 {
description WAN
duplex auto
hw-id 00:0d:b9:44:54:31
speed auto
vif 35 {
description DSL-1
}
}
pppoe pppoe0 {
authentication {
password <password>
user <user>
}
default-route auto
description PPPOE-1
dhcpv6-options {
pd 0 {
length 56
}
rapid-commit
}
ipv6 {
address {
autoconf
}
}
source-interface eth1.35
}r2:~$ show interfaces pppoe pppoe0 statistics
IN PACK VJCOMP VJUNC VJERR | OUT PACK VJCOMP VJUNC NON-VJ
3564706 34837 0 0 0 | 1753660 22451 0 0 22451
dtoubelis@r2:~$ show interfaces
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface IP Address S/L Description
--------- ---------- --- -----------
eth1 - u/u WAN
eth1.35 - u/u EBOX-DSL-INET
lo 127.0.0.1/8 u/u
::1/128
pppoe0 74.116.186.154/32 u/u EBOX-PPPOE
2606:6d00:15:5ce1:d0c4:8fac:b2e4:c5ad/64r2:~$ show interfaces pppoe pppoe0
pppoe0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1492 qdisc pfifo_fast state UNKNOWN group default qlen 3
link/ppp
inet 74.116.186.154 peer 96.127.249.100/32 scope global pppoe0
valid_lft forever preferred_lft forever
inet6 2606:6d00:15:5ce1:d0c4:8fac:b2e4:c5ad/64 scope global dynamic mngtmpaddr
valid_lft 2591821sec preferred_lft 604621sec
inet6 fe80::d0c4:8fac:b2e4:c5ad/10 scope link
valid_lft forever preferred_lft forever
Description: EBOX-PPPOE
RX: bytes packets errors dropped overrun mcast
3608289 35299 0 0 0 0
TX: bytes packets errors dropped carrier collisions
1780875 22793 0 0 0 0And this is the only place I managed to find this info:
vyos@r2:~$ sudo -i root@r2:~# journalctl -u [email protected] -- Logs begin at Mon 2021-03-22 20:03:16 EDT, end at Tue 2021-03-23 23:10:28 EDT. -- ... Mar 23 12:48:27 r2 systemd[1]: Starting WIDE DHCPv6 client on pppoe0... Mar 23 12:48:27 r2 dhcp6c[16976]: get_duid: extracted an existing DUID from /var/lib/dhcpv6/dhcp6c_duid: 00:01:00:01:27:ea:d3:18:00:0d:b9:44:54:30 Mar 23 12:48:27 r2 dhcp6c[16976]: dhcp6_ctl_authinit: failed to open /run/dhcp6c/dhcp6c.pppoe0.sock: No such file or directory Mar 23 12:48:27 r2 dhcp6c[16976]: client6_init: failed initialize control message authentication Mar 23 12:48:27 r2 dhcp6c[16976]: client6_init: skip opening control port Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>comment [### Autogenerated by interface.py ###] (37) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>comment [# man https://www.unix.com/man-page/debian/5/dhcp6c.conf/] (57) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[interface] (9) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <5>[pppoe0] (6) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>begin of closure [{] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[send] (4) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[ia-pd] (5) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[0] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>end of sentence [;] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>comment [# prefix delegation #0] (22) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>end of closure [}] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>end of sentence [;] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[id-assoc] (8) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <15>[pd] (2) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <15>[0] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <15>begin of closure [{] (1) Mar 23 12:48:27 r2 systemd[1]: [email protected]: Can't open PID file /run/dhcp6c/dhcp6c.pppoe0.pid (yet?) after start: No such file or directory Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[prefix] (6) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[::] (2) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[/] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[56] (2) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>[infinity] (8) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>end of sentence [;] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>end of closure [}] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: cfdebug_print: <3>end of sentence [;] (1) Mar 23 12:48:27 r2 dhcp6c[16976]: configure_pool: called Mar 23 12:48:27 r2 dhcp6c[16976]: clear_poolconf: called Mar 23 12:48:27 r2 dhcp6c[16982]: dhcp6_reset_timer: reset a timer on pppoe0, state=INIT, timeo=0, retrans=347 Mar 23 12:48:27 r2 systemd[1]: Started WIDE DHCPv6 client on pppoe0. Mar 23 12:48:28 r2 dhcp6c[16982]: client6_send: a new XID (4fd33a) is generated Mar 23 12:48:28 r2 dhcp6c[16982]: copy_option: set client ID (len 14) Mar 23 12:48:28 r2 dhcp6c[16982]: copy_option: set elapsed time (len 2) Mar 23 12:48:28 r2 dhcp6c[16982]: copyout_option: set IA_PD prefix Mar 23 12:48:28 r2 dhcp6c[16982]: copyout_option: set IA_PD Mar 23 12:48:28 r2 dhcp6c[16982]: client6_send: send solicit to ff02::1:2%pppoe0 Mar 23 12:48:28 r2 dhcp6c[16982]: dhcp6_reset_timer: reset a timer on pppoe0, state=SOLICIT, timeo=0, retrans=1083 Mar 23 12:48:28 r2 dhcp6c[16982]: client6_recv: receive advertise from fe80::2a0:a510:88:8ea4%pppoe0 on pppoe0 Mar 23 12:48:28 r2 dhcp6c[16982]: dhcp6_get_options: get DHCP option client ID, len 14 Mar 23 12:48:28 r2 dhcp6c[16982]: DUID: 00:01:00:01:27:ea:d3:18:00:0d:b9:44:54:30 Mar 23 12:48:28 r2 dhcp6c[16982]: dhcp6_get_options: get DHCP option server ID, len 26 Mar 23 12:48:28 r2 dhcp6c[16982]: DUID: 00:02:00:00:05:83:4a:4e:31:32:35:45:41:39:38:41:46:43:00:00:00:00:00:00:00:00 Mar 23 12:48:28 r2 dhcp6c[16982]: dhcp6_get_options: get DHCP option IA_PD, len 41 Mar 23 12:48:28 r2 dhcp6c[16982]: IA_PD: ID=0, T1=43200, T2=69120 Mar 23 12:48:28 r2 dhcp6c[16982]: copyin_option: get DHCP option IA_PD prefix, len 25 Mar 23 12:48:28 r2 dhcp6c[16982]: copyin_option: IA_PD prefix: 2606:6d00:19f:a800::/56 pltime=86400 vltime=86400 Mar 23 12:48:28 r2 dhcp6c[16982]: client6_recvadvert: server ID: 00:02:00:00:05:83:4a:4e:31:32:35:45:41:39:38:41:46:43:00:00:00:00:00:00:00:00, pref=-1 Mar 23 12:48:28 r2 dhcp6c[16982]: client6_recvadvert: reset timer for pppoe0 to 0.767146 Mar 23 12:48:29 r2 dhcp6c[16982]: select_server: picked a server (ID: 00:02:00:00:05:83:4a:4e:31:32:35:45:41:39:38:41:46:43:00:00:00:00:00:00:00:00) Mar 23 12:48:29 r2 dhcp6c[16982]: client6_send: a new XID (55eaf7) is generated Mar 23 12:48:29 r2 dhcp6c[16982]: copy_option: set client ID (len 14) Mar 23 12:48:29 r2 dhcp6c[16982]: copy_option: set server ID (len 26) Mar 23 12:48:29 r2 dhcp6c[16982]: copy_option: set elapsed time (len 2) Mar 23 12:48:29 r2 dhcp6c[16982]: copyout_option: set IA_PD prefix Mar 23 12:48:29 r2 dhcp6c[16982]: copyout_option: set IA_PD Mar 23 12:48:29 r2 dhcp6c[16982]: client6_send: send request to ff02::1:2%pppoe0 Mar 23 12:48:29 r2 dhcp6c[16982]: dhcp6_reset_timer: reset a timer on pppoe0, state=REQUEST, timeo=0, retrans=946 Mar 23 12:48:29 r2 dhcp6c[16982]: client6_recv: receive reply from fe80::2a0:a510:88:8ea4%pppoe0 on pppoe0 Mar 23 12:48:29 r2 dhcp6c[16982]: dhcp6_get_options: get DHCP option client ID, len 14 Mar 23 12:48:29 r2 dhcp6c[16982]: DUID: 00:01:00:01:27:ea:d3:18:00:0d:b9:44:54:30 Mar 23 12:48:29 r2 dhcp6c[16982]: dhcp6_get_options: get DHCP option server ID, len 26 Mar 23 12:48:29 r2 dhcp6c[16982]: DUID: 00:02:00:00:05:83:4a:4e:31:32:35:45:41:39:38:41:46:43:00:00:00:00:00:00:00:00 Mar 23 12:48:29 r2 dhcp6c[16982]: dhcp6_get_options: get DHCP option IA_PD, len 41 Mar 23 12:48:29 r2 dhcp6c[16982]: IA_PD: ID=0, T1=43200, T2=69120 Mar 23 12:48:29 r2 dhcp6c[16982]: copyin_option: get DHCP option IA_PD prefix, len 25 Mar 23 12:48:29 r2 dhcp6c[16982]: copyin_option: IA_PD prefix: 2606:6d00:19f:a800::/56 pltime=86400 vltime=86400 Mar 23 12:48:29 r2 dhcp6c[16982]: get_ia: make an IA: PD-0 Mar 23 12:48:29 r2 dhcp6c[16982]: update_prefix: create a prefix 2606:6d00:19f:a800::/56 pltime=86400, vltime=86400 Mar 23 12:48:29 r2 dhcp6c[16982]: dhcp6_remove_event: removing an event on pppoe0, state=REQUEST Mar 23 12:48:29 r2 dhcp6c[16982]: dhcp6_remove_event: removing server (ID: 00:02:00:00:05:83:4a:4e:31:32:35:45:41:39:38:41:46:43:00:00:00:00:00:00:00:00) Mar 23 12:48:29 r2 dhcp6c[16982]: client6_recvreply: got an expected reply, sleeping.
(the prefix in question is 2606:6d00:19f:a800::/56)
Could you please add IA_PD prefix to the output of show intefaces command?