To reproduce configure `ipsec site-to-site` tunnel with DHCP client
logs:
```
Nov 28 14:07:35 r1 root[9642]: /etc/dhcp/dhclient-exit-hooks.d/ipsec-dhclient-hook returned non-zero exit status 1
Nov 28 14:07:35 r1 dhclient[1465]: bound to 10.x.x.x -- renewal in 132 seconds.
```
Execute script:
```
vyos@r1# /etc/dhcp/dhclient-exit-hooks.d/ipsec-dhclient-hook
Traceback (most recent call last):
File "<stdin>", line 39, in <module>
NameError: name 'secrets_lines' is not defined
[edit]
vyos@r1#
```
So [[ https://github.com/vyos/vyos-1x/blob/9a69e68b0f0affeac8aeab66783ae0249d67373f/src/etc/dhcp/dhclient-exit-hooks.d/ipsec-dhclient-hook#L74 | secrets_lines]] is not defined
It can be affected to `secrets` if DHCP address were changed