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Commit 91c3b8bdd9 ("dhcp_server.py: cleanup") did not only cleanup parts
of the code but in addition added support for DHCP failover. That support
could lead to an empty pool {} statement if the subnet declaration only had
static address assignments but no range at all.
---<snip>---
dhcpd: /etc/dhcp/dhcpd.conf line 70: Pool declaration with no address
range.
dhcpd: }
dhcpd: ^
dhcpd: Pool declarations must always contain at least
dhcpd: one range statement.
---</snip>---
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Commit 067a6b1524 ("vyos: package: extend validator by is_subnet_connected()")
added a mechanism to probe if a given IPv4/IPv6 address is connected to any
interface on the subnet - or is part of this subnet.
We now use this call instead of producing more and more biler-plate code!
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verify()
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If there was yet no lease file present, dhcpd refused to start. Lease
file is created if required. Ususally this is handeled by the isc-dhcp-server
init script but we use our own path (for persistance) of that file.
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This commit changes in addtion the DHCP server config syntax as defined
in "T782: Cleanup dhcp-server configuration".
Replace boolean parameter from the folowing nodes and make it valueless.
This requires a migration script which is tracked with this task
* set service dhcp-server shared-network-name <xyz> subnet 172.31.0.0/24
ip-forwarding enable (true|false)
* set service dhcp-server shared-network-name <xyz> authoritative (true|false)
* set service dhcp-server disabled (true|false)
* set service dhcp-server dynamic-dns-update enable (true|fals)
* set service dhcp-server hostfile-update (enable|disable)
Replace the nested start/stop ip address from "subnet 172.31.0.0/24 start
172.31.0.101 stop 172.31.0.149" to "subnet 172.31.0.0/24 range <foo> start" and
"subnet 172.31.0.0/24 range <foo> stop" where foo can be any character or number.
In addition the vyatta-cfg-dhcp-server package used it's own init/config file
for service startup. This has been migrated to the vanilla Debian files.
Copy 'on-dhcp-event.sh' from vyatta-cfg-shcp-server package commit 4749e648bca6.
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