From stillzy on Reddit (https://www.reddit.com/r/vyos/comments/lfe2zm/change_dhcp_default_metric/):
Change DHCP Default Metric
With EdgeOS it's possible to change the default route metric for DHCP Learned default routes, is this possible with VyOS?
Add dhcp-options default-route-distance configuration node.
Wrong behavior
set high-availability vrrp group test interface 'eth1' set high-availability vrrp group test rfc3768-compatibility set high-availability vrrp group test virtual-address '172.20.110.111/24' set high-availability vrrp group test virtual-address '172.20.110.15/24' set high-availability vrrp group test vrid '1' set interfaces ethernet eth1 address 'dhcp' set interfaces ethernet eth1 dhcp-options default-route-distance '254'
That creates vrf name "eth1v1" and assigns the default route to that vrf. I don't use any vrf.
! vrf eth1v1 ip route 0.0.0.0/0 192.168.101.1 eth1 tag 210 254 exit-vrf !
I created a separate task for this because it was not caused by a previous commit. T3392
Looks good on 1.4-rolling-202103080218:
vyos@vyos:~$ configure
[edit]
vyos@vyos# set interfaces ethernet eth0 address dhcp
[edit]
vyos@vyos# commit
[edit]
vyos@vyos# exit
Warning: configuration changes have not been saved.
exit
vyos@vyos:~$ show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
F - PBR, f - OpenFabric,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
S>* 0.0.0.0/0 [210/0] via 192.168.251.1, eth0, weight 1, 00:00:03
C>* 192.168.251.0/24 is directly connected, eth0, 00:00:03
vyos@vyos:~$ configure
[edit]
vyos@vyos# set interfaces ethernet eth0 dhcp-options default-route-distance 220
[edit]
vyos@vyos# commit
[edit]
vyos@vyos# exit
Warning: configuration changes have not been saved.
exit
vyos@vyos:~$ show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
F - PBR, f - OpenFabric,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
S>* 0.0.0.0/0 [220/0] via 192.168.251.1, eth0, weight 1, 00:00:01
C>* 192.168.251.0/24 is directly connected, eth0, 00:00:01
vyos@vyos:~$ show version
Version: VyOS 1.4-rolling-202103080218
Release Train: sagitta
Built by: [email protected]
Built on: Mon 08 Mar 2021 02:18 UTC
Build UUID: 4debd270-2278-4f2e-84eb-200965ec8b40
Build Commit ID: e758a269e84509
Architecture: x86_64
Boot via: installed image
System type: KVM guest
Hardware vendor: QEMU
Hardware model: Standard PC (Q35 + ICH9, 2009)
Hardware S/N:
Hardware UUID: 06d0fd71-2f1e-4e2f-a29c-79dc6ca82ca9
Copyright: VyOS maintainers and contributorsLooks good on 1.3-rolling-202103280642:
vyos@vyos:~$ configure
[edit]
vyos@vyos# set interfaces ethernet eth0 address dhcp
[edit]
vyos@vyos# commit
[edit]
vyos@vyos# exit
Warning: configuration changes have not been saved.
exit
vyos@vyos:~$ show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
F - PBR, f - OpenFabric,
> - selected route, * - FIB route, q - queued route, r - rejected route
S>* 0.0.0.0/0 [210/0] via 192.168.251.1, eth0, 00:00:02
C>* 192.168.251.0/24 is directly connected, eth0, 00:00:02
vyos@vyos:~$ configure
[edit]
vyos@vyos# set interfaces ethernet eth0 dhcp-options default-route-distance 220
[edit]
vyos@vyos# commit
[edit]
vyos@vyos# exit
Warning: configuration changes have not been saved.
exit
vyos@vyos:~$ show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
F - PBR, f - OpenFabric,
> - selected route, * - FIB route, q - queued route, r - rejected route
S>* 0.0.0.0/0 [220/0] via 192.168.251.1, eth0, 00:00:01
C>* 192.168.251.0/24 is directly connected, eth0, 00:00:01
vyos@vyos:~$ show version
Version: VyOS 1.3-rolling-202103280642
Release Train: equuleus
Built by: [email protected]
Built on: Mon 29 Mar 2021 03:42 UTC
Build UUID: a3b25a73-a77e-440d-9000-099e5b504cd2
Build Commit ID: 56ecc5b821b2f0
Architecture: x86_64
Boot via: installed image
System type: KVM guest
Hardware vendor: QEMU
Hardware model: Standard PC (Q35 + ICH9, 2009)
Hardware S/N:
Hardware UUID: 688112b3-7dd7-42b5-9642-83ab9b7242ee
Copyright: VyOS maintainers and contributors