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path: root/data/templates/dhcp-client/override.conf.j2
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2024-03-28op-mode: T6175: "renew dhcp interface <name>" does not check for DHCP interfaceChristian Breunig
The current op-mode script simply calls sudo systemctl restart "dhclient@$4.service" with no additional information about a client interface at all. This results in useless dhclient processes root 47812 4.7 0.0 5848 3584 ? Ss 00:30 0:00 /sbin/dhclient -4 -d root 48121 0.0 0.0 4188 3072 ? S 00:30 0:00 \_ /bin/sh /sbin/dhclient-script root 48148 50.0 0.2 18776 11264 ? R 00:30 0:00 \_ python3 - Which also assign client leases to all local interfaces, if we receive one valid DHCPOFFER vyos@vyos:~$ show interfaces Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down Interface IP Address MAC VRF MTU S/L Description ----------- ----------------- ----------------- ------- ----- ----- ------------- eth0 - 00:50:56:bf:c5:6d default 1500 u/u eth0.10 172.16.33.102/24 00:50:56:bf:c5:6d default 1500 u/u eth1 172.16.33.131/24 00:50:56:b3:38:c5 default 1500 u/u 172.16.33.102/24 and 172.16.33.131/24 are stray DHCP addresses. This commit moved the renew command to the DHCP op-mode script to properly validate if the interface we request a renew for, has actually a dhcp address configured. In additional this exposes the renew feature to the API. (cherry picked from commit 7dbaa25a199a781aaa9f269741547e576410cb11)
2023-08-17Revert: dhcp: T5428: always release lease from default VRFChristian Breunig
This reverts commit 9afcea251bdc895ffd49cb11f455fd636fdf817b A DHCP relese must also be originated from the VRF where the dhclient program is running, else the RELEASE message can not be send through the interface towards the DHCP server. The reason it did not work in the past was because of https://vyos.dev/T5476
2023-08-07dhcp: T5428: always release lease from default VRFChristian Breunig
Otherwise packet can be received in a VRF that was already deleted. Image of the following CLI commands: del interface ethernet eth0 address dhcp del interface ethernet eth0 vrf red del vrf name red VRF could be deleted even if dhclient release was not yet completely processed.
2023-08-05dhcp: T5428: remove hardcoded path to client runtime directoriesChristian Breunig
2023-08-04dhcp: T5428: client renewal fails when running inside VRFChristian Breunig
vyos@vyos# run show vrf MGMT processes 2282 sshd There is no dhclient process running in given VRF. dhclient complains it can not send out packets via the given interface (as it's not bound to that VRF) Aug 02 20:29:54 dhclient[1686]: send_packet: Network is unreachable Aug 02 20:29:54 dhclient[1686]: send_packet: please consult README file regarding broadcast address. Aug 02 20:29:54 dhclient[1686]: dhclient.c:3001: Failed to send 300 byte long packet over fallback interface.