Does nsupdate implemented in 1.1.7 ?

Hi, All

I try to configure dynamic dns update as described in
http://wiki.vyos.net/wiki/Dynamic_DNS#VyOS_CLI_and_RFC2136

but this feature seems to be not implemented or disabled

[code]vyos@firewall:~$ show version
Version: VyOS 1.1.7
Description: VyOS 1.1.7 (helium)
Copyright: 2016 VyOS maintainers and contributors
Built by: maintainers@vyos.net
Built on: Wed Feb 17 13:43:15 UTC 2016
Build ID: 1602171343-4459750
System type: x86 32-bit Virtual
Boot via: image
Hypervisor: Xen hvm
HW model: HVM domU
HW S/N:
HW UUID:
Uptime: 16:20:38 up 27 days, 6:21, 4 users, load average: 0.00, 0.01, 0.05

vyos@firewall:~$ configure
[edit]
vyos@firewall# edit service dns dynamic interface eth0 rfc2136 test

Configuration path: service dns dynamic interface eth0 [rfc2136] is not valid
Edit failed

[edit]
vyos@firewall# edit service dns dynamic interface eth0 rfc2136

Configuration path: service dns dynamic interface eth0 [rfc2136] is not valid
Edit failed

[edit]

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