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Today's Topics:
1. Transitioning Openwrt to Kea (Philip Prindeville)
----------------------------------------------------------------------
Message: 1
Date: Mon, 29 Jul 2024 22:28:06 -0600
From: Philip Prindeville <[email protected]>
To: [email protected]
Subject: [kea-dev] Transitioning Openwrt to Kea
Message-ID:
<[email protected]>
Content-Type: text/plain; charset=utf-8
Hi,
I am the maintainer for isc-dhcp on Openwrt, and I?m trying to add backend
support to move users over to Kea while not breaking their configurations.
I had some questions about what the equivalent Kea configuration commands were.
I had started using the migration tool but there are some cases it doesn?t
handle.
Looking at the documentation, for instance, it states that ?renew-timer? can be
applied globally or per subnet, but I can?t figure out where in the subnet4
declaration it would go.
ISC DHCP had the ?always-broadcast? per-subnet or per-host directive, but I
can?t figure out what the Kea equivalent is.
Similarly for ?authoritative? (and ?deny unknown-clients? vs. ?ignore
unknown-clients?) and ?boot-unknown-clients?.
Also, if a host (say my MacBook Pro) can be docked to a docking station with
Ethernet *and* roam around via WiFi, but I want it to have the same IP address
in both cases, how to do that? I?ve tried:
"reservations": [
{
"hostname": "Philips-Laptop",
"hw-address": "c8:89:f3:b3:c4:3c",
"ip-address": "172.21.12.2",
"option-data": [
{
"name": "host-name",
"data": "Philips-Laptop"
}
]
},
{
"hostname": "Philips-Laptop",
"hw-address": "00:e0:4c:08:25:2f",
"ip-address": "172.21.12.2",
"option-data": [
{
"name": "host-name",
"data": "Philips-Laptop"
}
]
},
?
but this just makes it complain:
2024-07-29 22:11:52.549 ERROR [kea-dhcp4.dhcp4/25373.139806395011408]
DHCP4_PARSER_FAIL failed to create or run parser for configuration element
subnet4: failed to add new host using the HW address '00:e0:4c:08:25:2f and
DUID '(null)' to the IPv4 subnet id ?5' for the address 172.21.12.2: There's
already a reservation for this address
Error encountered: failed to add new host using the HW address
'00:e0:4c:08:25:2f and DUID '(null)' to the IPv4 subnet id ?5' for the address
172.21.12.2: There's already a reservation for this address
Can I pass in an array for ?hw-address??
I?ve been working on this off and on for a few months now, and if I can resolve
these last few issues then I think the migration tool will be good to go.
If anyone is curious I can post what I have so far, though it hasn?t been
completely integrated into the new Kea framework (which requires manual
configuration until I can get this frontend working).
Thanks,
-Philip
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