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Maniphest T6991

DHCP default route is lost on reboot or any other FRR related change wh
Closed, ResolvedPublicFEATURE REQUEST
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Description

The reason is that DHCP routes are not re-generated during FRR render as long as there is no protocols static entry in the configuration at all.

Workaround:
set protocols static route 169.254.0.0/16 blackhole

Add a blackhole route for the APIPA IP prefix which is only used for IPv4 link local addresses.

Details

Version
1.5-rolling-202412310006
Is it a breaking change?
Perfectly compatible
Issue type
Bug (incorrect behavior)

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StatusSubtypeAssignedTask
 In progressFEATURE REQUESTc-poT6747 frr: upgrade routing suite to 10.2
 ResolvedFEATURE REQUESTc-poT6991 DHCP default route is lost on reboot or any other FRR related change wh

Event Timeline

c-po created this task.Tue, Dec 31, 7:55 AM
c-po claimed this task.
c-po triaged this task as Urgent! priority.
c-po changed Version from - to 1.5-rolling-202412310006.
c-po removed a project: VyOS 1.5 Circinus.
c-po updated the task description. (Show Details)Tue, Dec 31, 7:58 AM
c-po added a comment.Tue, Dec 31, 1:24 PM

https://github.com/vyos/vyos-build/pull/872
https://github.com/vyos/vyos-1x/pull/4270

c-po mentioned this in rVYOSONEX6452754673a9: frrender: T6991: do not loose DHCP default route when no static route is defined.Tue, Dec 31, 5:06 PM
Restricted Repository Identity mentioned this in rVYOSONEX825743b6bcdf: Merge pull request #4270 from c-po/frrender-dhcp.Tue, Dec 31, 5:06 PM
c-po closed this task as Resolved.Tue, Dec 31, 5:06 PM
c-po moved this task from Need Triage to Completed on the VyOS Rolling board.
Firefishy subscribed.EditedFri, Jan 3, 4:04 AM

I think there is a similar issue for wireguard static routes. In 1.5-rolling-202412310006 the routes are not being added. Works fine in older releases.

c-po added a comment.Fri, Jan 10, 6:33 AM

@Firefishy do you have an example for this issue? Please retry latest rolling and if it still occurs feel free to open a bug report and directly assign it to me.