Apply dhcp settings to mirror wicked client id

[jcronenberg]

Description

This PR sets the relevant NM config options that are required so the DHCPv4 client identifier is the same between wicked and NM. I haven't tested DHCPv6 yet.

What's required to set is

ipv4.dhcp-client-id=ipv6-duid
ipv6.dhcp-duid=llt
ipv4.dhcp-iaid=mac

Screenshots

wicked:

NM without changes:

NM with changes:

[coveralls]

Pull Request Test Coverage Report for Build 17768932103

Details

• 9 of 17 (52.94%) changed or added relevant lines in 1 file are covered.
• 3 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+0.06%) to 49.945%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/interface.rs	9	17	52.94%

Files with Coverage Reduction	New Missed Lines	%
src/interface.rs	1	69.93%
src/reader.rs	1	25.29%
src/wireless.rs	1	47.57%

Totals
Change from base Build 16935531844:	0.06%
Covered Lines:	454
Relevant Lines:	909

---

💛 - Coveralls

[cfconrad]

As a general comment to this topic, we are not getting the similar CID, because how the CID is created (even if we will have the same DUID Type) can be different.
E.g.
I have a setup with 2 interfaces. I run DHCPv6 only on the second one.
But the DUID, which wicked is using, was created with the HWAddr of the first on. Compared to NetworkManager, the DUID is created with the HWaddr of the interface it self.
I think it would be nice, if we mention a way how to set the DUID directly using ipv6.dhcp-duid and ipv4.dhcp-client-id explicit with the value from wicked duid.

[cfconrad]

LGTM, thx