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No DHCPv6 leases reported for "show dhcpv6 client leases"
Closed, ResolvedPublicBUG


I configured one of my LAB routers to make use of DHCPv6

vyos@vyos# show interfaces
 ethernet eth0 {
     duplex auto
     hw-id 00:50:56:00:00:fa
     smp-affinity auto
     speed auto
     vif 202 {
         address dhcp
         address dhcpv6

An IPv6 address is assigend as shown by:

vyos@vyos:~$ show interfaces ethernet
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface        IP Address                        S/L  Description
---------        ----------                        ---  -----------
eth0             -                                 u/u
eth0.202                  u/u
vyos@vyos:~$ show interfaces ethernet eth0 vif 202
eth0.202@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:50:56:00:00:fa brd ff:ff:ff:ff:ff:ff
    inet brd scope global eth0.202
       valid_lft forever preferred_lft forever
    inet6 2001:db8:202::199/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::250:56ff:fe00:fa/64 scope link
       valid_lft forever preferred_lft forever

    RX:  bytes    packets     errors    dropped    overrun      mcast
        310719       4181          0          0          0          3
    TX:  bytes    packets     errors    dropped    carrier collisions
        562266       3813          0          0          0          0

But the show dhcpv6 client leases command fails

vyos@vyos:~$ show dhcpv6 client leases
There are no DHCPv6 leases.
vyos@vyos:~$ ls -la /var/lib/dhcp/dhclient_v6_*
-rw-r--r-- 1 root root 168 Mar  8 18:43 /var/lib/dhcp/dhclient_v6_eth0.202.conf
-rw-r--r-- 1 root root 450 Mar  8 18:43 /var/lib/dhcp/dhclient_v6_eth0.202.leases
-rw-r--r-- 1 root root   5 Mar  8 18:43 /var/lib/dhcp/

Shows that the file /var/lib/dhcp/dhclient_v6_eth0.202_leases is missing as required by /opt/vyatta/sbin/


Difficulty level
Normal (likely a few hours)
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Unspecified (possibly destroys the router)

Event Timeline

dmbaturin changed the task status from Open to Needs testing.Mar 26 2019, 1:55 AM
dmbaturin added a subscriber: dmbaturin.

Curiously, I can't reproduce it in the latest rolling, even though the code hasn't changed. We need to test in latest crux builds.

syncer triaged this task as Low priority.
syncer edited projects, added VyOS 1.3 Equuleus; removed VyOS 1.2 Crux.
c-po changed the task status from Needs testing to In progress.Jun 2 2020, 5:56 PM
c-po claimed this task.
c-po set Is it a breaking change? to Unspecified (possibly destroys the router).
c-po added a subscriber: zsdc.

Unfortunately this is not possible with WIDE DHCPv6 client