The issue reproduces on 1.4.3.
This is Linux kernel issue fixed in v6.6.99 (VyOS 1.4.3 has kernel v6.6.93): https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2ca1db269a8d202c3f97fd53fa7c9ef7f1bb21d6 and will be fixed in VyOS 1.4.4 with kernel update.
Till then the workaround you've found

set protocols static route6 ff00::/8 interface tun2
set protocols static route6 ff00::/8 interface tun3

should work fine - the kernel commit has message:

gre: Fix IPv6 multicast route creation.

Oct 15 2025, 3:51 PM

hedrok closed T6769: Commit command does not validate its arguments as Resolved.

Oct 15 2025, 6:12 AM · VyOS 1.5 Circinus (2025.11)

hedrok closed T7568: Docker: clean apt cache + clean some /tmp files as Resolved.

Oct 15 2025, 6:11 AM · VyOS Rolling

Oct 14 2025

hedrok created T7931: FRR restarted on any configuration change when there is static route in VRF.

Oct 14 2025, 10:10 AM · VyOS Rolling

Oct 13 2025

hedrok added a comment to T7927: Default DHCP route under VRF is deleted on commit that reloads FRR.

Log after commit:

Oct 13 12:22:41 vyos vyos-configd[643]: Received message: {"type": "init"}
Oct 13 12:22:41 vyos vyos-configd[643]: config session pid is 2467
Oct 13 12:22:41 vyos vyos-configd[643]: config session sudo_user is vyos
Oct 13 12:22:41 vyos vyos-configd[643]: commit_scripts: ['protocols_static']
Oct 13 12:22:41 vyos vyos-configd[643]: Received message: {"type": "node", "last": true, "data": "/usr/libexec/vyos/conf_mode/protocols_static.py"}
Oct 13 12:22:41 vyos vyos-configd[643]: Sending reply: SUCCESS with output
Oct 13 12:22:41 vyos vyos-configd[643]: scripts_called: ['protocols_static']
Oct 13 12:22:41 vyos systemd[1]: opt-vyatta-config-tmp-new_config_2467.mount: Deactivated successfully.
Oct 13 12:22:42 vyos zebra[1226]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos zebra[1226]: [G6NKK-8C6DV] end_config: VTY:0x562d5fd15b40, pending SET-CFG: 0
Oct 13 12:22:42 vyos ldpd[1267]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ldpd[1267]: [G6NKK-8C6DV] end_config: VTY:0x556178347f10, pending SET-CFG: 0
Oct 13 12:22:42 vyos ripd[1240]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ripngd[1243]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ripngd[1243]: [G6NKK-8C6DV] end_config: VTY:0x559031363800, pending SET-CFG: 0
Oct 13 12:22:42 vyos ripd[1240]: [G6NKK-8C6DV] end_config: VTY:0x560192f43160, pending SET-CFG: 0
Oct 13 12:22:42 vyos bgpd[1233]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos bgpd[1233]: [G6NKK-8C6DV] end_config: VTY:0x564064482180, pending SET-CFG: 0
Oct 13 12:22:42 vyos mgmtd[1231]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos mgmtd[1231]: [G6NKK-8C6DV] end_config: VTY:0x562dbaae8c30, pending SET-CFG: 3
Oct 13 12:22:42 vyos isisd[1252]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos isisd[1252]: [G6NKK-8C6DV] end_config: VTY:0x563de2753030, pending SET-CFG: 0
Oct 13 12:22:42 vyos watchfrr[1205]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos nhrpd[1272]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos nhrpd[1272]: [G6NKK-8C6DV] end_config: VTY:0x55ac2419b0f0, pending SET-CFG: 0
Oct 13 12:22:42 vyos babeld[1255]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos babeld[1255]: [G6NKK-8C6DV] end_config: VTY:0x559fd4df09f0, pending SET-CFG: 0
Oct 13 12:22:42 vyos staticd[1276]: [PNYPZ-BCP8Y] Static Route using eth0 interface not installed because the interface does not exist in specified vrf
Oct 13 12:22:42 vyos staticd[1276]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos staticd[1276]: [G6NKK-8C6DV] end_config: VTY:0x562c9e8a5b50, pending SET-CFG: 0
Oct 13 12:22:42 vyos bfdd[1281]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos bfdd[1281]: [G6NKK-8C6DV] end_config: VTY:0x5556012d3300, pending SET-CFG: 0
Oct 13 12:22:42 vyos pim6d[1258]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos pim6d[1258]: [G6NKK-8C6DV] end_config: VTY:0x561f1d393ea0, pending SET-CFG: 0
Oct 13 12:22:42 vyos ospfd[1246]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ospfd[1246]: [G6NKK-8C6DV] end_config: VTY:0x555d3a74de40, pending SET-CFG: 0
Oct 13 12:22:42 vyos fabricd[1284]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos fabricd[1284]: [G6NKK-8C6DV] end_config: VTY:0x55a2b906bd30, pending SET-CFG: 0
Oct 13 12:22:42 vyos ospf6d[1249]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ospf6d[1249]: [G6NKK-8C6DV] end_config: VTY:0x55bd4b078590, pending SET-CFG: 0
Oct 13 12:22:42 vyos zebra[1226]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos zebra[1226]: [G6NKK-8C6DV] end_config: VTY:0x562d5fd15b40, pending SET-CFG: 0
Oct 13 12:22:42 vyos mgmtd[1231]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos mgmtd[1231]: [G6NKK-8C6DV] end_config: VTY:0x562dbaabeb90, pending SET-CFG: 2
Oct 13 12:22:42 vyos ripd[1240]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ripd[1240]: [G6NKK-8C6DV] end_config: VTY:0x560192f43160, pending SET-CFG: 0
Oct 13 12:22:42 vyos ripngd[1243]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ripngd[1243]: [G6NKK-8C6DV] end_config: VTY:0x559031363800, pending SET-CFG: 0
Oct 13 12:22:42 vyos ldpd[1267]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ldpd[1267]: [G6NKK-8C6DV] end_config: VTY:0x556178347f10, pending SET-CFG: 0
Oct 13 12:22:42 vyos ospfd[1246]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ospfd[1246]: [G6NKK-8C6DV] end_config: VTY:0x555d3a74dd80, pending SET-CFG: 0
Oct 13 12:22:42 vyos nhrpd[1272]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos nhrpd[1272]: [G6NKK-8C6DV] end_config: VTY:0x55ac2419b0f0, pending SET-CFG: 0
Oct 13 12:22:42 vyos bgpd[1233]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos bgpd[1233]: [G6NKK-8C6DV] end_config: VTY:0x564064482180, pending SET-CFG: 0
Oct 13 12:22:42 vyos ospf6d[1249]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos ospf6d[1249]: [G6NKK-8C6DV] end_config: VTY:0x55bd4b078590, pending SET-CFG: 0
Oct 13 12:22:42 vyos isisd[1252]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos isisd[1252]: [G6NKK-8C6DV] end_config: VTY:0x563de2753030, pending SET-CFG: 0
Oct 13 12:22:42 vyos staticd[1276]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos bfdd[1281]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos bfdd[1281]: [G6NKK-8C6DV] end_config: VTY:0x5556012d3300, pending SET-CFG: 0
Oct 13 12:22:42 vyos staticd[1276]: [G6NKK-8C6DV] end_config: VTY:0x562c9e8a5b50, pending SET-CFG: 0
Oct 13 12:22:42 vyos babeld[1255]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos babeld[1255]: [G6NKK-8C6DV] end_config: VTY:0x559fd4df0930, pending SET-CFG: 0
Oct 13 12:22:42 vyos watchfrr[1205]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos fabricd[1284]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos fabricd[1284]: [G6NKK-8C6DV] end_config: VTY:0x55a2b906bd30, pending SET-CFG: 0
Oct 13 12:22:42 vyos pim6d[1258]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Oct 13 12:22:42 vyos pim6d[1258]: [G6NKK-8C6DV] end_config: VTY:0x561f1d393ea0, pending SET-CFG: 0
Oct 13 12:22:42 vyos watchfrr[1205]: [WFP93-1D146] configuration write completed with exit code 0
Oct 13 12:22:45 vyos commit[3207]: Successful change to active configuration by user vyos on /dev/ttyS0
Oct 13 12:26:54 vyos systemd[1]: opt-vyatta-config-tmp-new_config_2467.mount: Deactivated successfully.

Oct 13 2025, 12:39 PM · VyOS 1.5 Circinus (2025.11)

hedrok created T7927: Default DHCP route under VRF is deleted on commit that reloads FRR.

Oct 13 2025, 12:27 PM · VyOS 1.5 Circinus (2025.11)

hedrok added a comment to T5942: Failover Route using DHCP provided gateway.

Unfortunately I am not aware of such plans currently.

Oct 13 2025, 10:17 AM · VyOS 1.5 Circinus (2025.11)

Oct 9 2025

hedrok added a comment to T7771: OSPFv3 doesn't come up.

Thanks for firewall details, could you please add

Oct 9 2025, 8:58 PM

hedrok added a comment to T7771: OSPFv3 doesn't come up.

Thanks for quick reply.

Oct 9 2025, 7:49 PM

hedrok added a comment to T7771: OSPFv3 doesn't come up.

Couldn't reproduce the issue on 1.4 (Sagitta) or Rolling with simple topolgy R-01.eth1 -- R-02.eth1:

Oct 9 2025, 3:58 PM

hedrok added a comment to T5942: Failover Route using DHCP provided gateway.

PR: https://github.com/vyos/vyos-1x/pull/4783

Oct 9 2025, 1:57 PM · VyOS 1.5 Circinus (2025.11)

Oct 8 2025

hedrok committed rVYOSONEX931e5b5712b4: T7803: Make failover route vrf-aware.

Oct 8 2025, 4:05 PM

Sep 25 2025

hedrok added a comment to T6969: Issues with OSPF Route Redistribution.

Cannot reproduce on 1.4.4 and rolling with the following configuration:

Sep 25 2025, 12:37 PM · VyOS 1.5 Circinus, VyOS Rolling

hedrok added a comment to T6969: Issues with OSPF Route Redistribution.

Sep 25 2025, 12:31 PM · VyOS 1.5 Circinus, VyOS Rolling

Sep 24 2025

hedrok added a comment to T7803: Make failover route vrf-aware.

Added option:

Sep 24 2025, 11:30 AM · VyOS 1.5 Circinus (2025.11)

Sep 19 2025

hedrok added a comment to T6516: ISIS - advertise-passive-only not install route in the RIB.

FRR PR: https://github.com/FRRouting/frr/pull/19593
VyOS PR with patch: https://github.com/vyos/vyos-build/pull/1040

Sep 19 2025, 8:40 PM · VyOS 1.5 Circinus (2025.11)

Sep 17 2025

hedrok added a comment to T7495: FRR does not redistribute BGP table x routes.

Sorry, please consult about dates of releases with support.

Sep 17 2025, 8:16 AM · VyOS 1.5 Circinus (2025.11)

Sep 16 2025

hedrok committed rVYOSONEXe992fb4ec3d6: T75: migrate from pmacct to ipt_NETFLOW.

Sep 16 2025, 2:30 PM

Sep 15 2025

hedrok added a comment to T7495: FRR does not redistribute BGP table x routes.

Yes, it will be fixed in release 1.4.4.

Sep 15 2025, 1:15 PM · VyOS 1.5 Circinus (2025.11)

hedrok added a comment to T7495: FRR does not redistribute BGP table x routes.

It is fixed.

Sep 15 2025, 11:28 AM · VyOS 1.5 Circinus (2025.11)

hedrok added a comment to T6962: FRR zebra: Kernel routes are not updated properly.

The issue is still reproducible in FRR's master.
I've prepared my own fix in FRR: https://github.com/FRRouting/frr/pull/19564
As patch in VyOS: https://github.com/vyos/vyos-build/pull/1029

Sep 15 2025, 7:10 AM · VyOS 1.5 Circinus (2025.11)

Sep 11 2025

hedrok committed rVYOSONEXcb91488db796: ospf: T7297: Add smoketest for redistribute table.

Sep 11 2025, 2:29 PM

hedrok committed rVYOSONEX5c696dcfdb22: ospf: T7297: fix redistribute-table.

Sep 11 2025, 2:29 PM

Sep 9 2025

hedrok added a comment to T7297: FRR 9.1.x 10.2.x does not redistribute OSPF kernel table x routes.

Fix:
https://github.com/vyos/vyos-build/pull/1026 - cherry-pick of FRR commit that adds 'table-direct' support for OSPF.
https://github.com/vyos/vyos-1x/pull/4704 - replaces table with table-direct in FRR config for command set protocols ospf redistribute table 10.

Sep 9 2025, 5:25 AM · VyOS 1.5 Circinus (2025.11)

Sep 2 2025

hedrok added a comment to T7761: New NetFlow implementation based on ipt-netflow.

In T7761#234119, @Fabse wrote:

aggregation — ipt-netflow allows rewriting IP prefixes and ports. Do we want that?

This feature is crucial for our use case. We are using a custom build for ipt_NETFLOW since 2024 in order to --enable-aggregation for being able to account all flows (sampling rate 1) while keeping flow cardinality manageable. --enable-direction would be great as well.

Sep 2 2025, 7:57 AM · VyOS 1.5 Circinus (1.5-stream-2025-Q3), VyOS Rolling

Aug 28 2025

hedrok added a comment to T7761: New NetFlow implementation based on ipt-netflow.

I suggest just removing buffer-size option - in data/templates/pmacct/uacctd.conf.j2 it is translated to pmacct option plugin_pipe_size - specific to pmacct option about pipe size between processes of pmacct.
ipt_NETFLOW's sndbuf is size of output socket buffer in bytes with system default as default - no relation to plugin_pipe_size pmacct option, I don't think there is need to publish it via vyos CLI.

Aug 28 2025, 7:36 PM · VyOS 1.5 Circinus (1.5-stream-2025-Q3), VyOS Rolling

Jul 30 2025

hedrok added a comment to T7537: Bump aws-gwlbtun to version c1fd48b.

PR https://github.com/vyos/vyos-build/pull/1001

Jul 30 2025, 7:59 AM · VyOS 1.5 Circinus (1.5-stream-2025-Q3), VyOS Rolling

Jul 24 2025

hedrok committed rVYOSONEX6060c194e3f7: T7489: Fix output state of ipsec passthrough child.

Jul 24 2025, 2:10 PM

Jul 22 2025

hedrok added a comment to T7489: Fix the output command "show vpn ipsec connection" for passthrough tunnels.

Tried to fix here: https://github.com/vyos/vyos-1x/pull/4616

Jul 22 2025, 3:36 PM · VyOS 1.5 Circinus (2025.11), Restricted Project

Jul 11 2025

hedrok added a comment to T6769: Commit command does not validate its arguments.

Fix of commit-config after changes: https://github.com/vyos/vyatta-cfg/pull/107

Jul 11 2025, 5:02 AM · VyOS 1.5 Circinus (2025.11)

Jul 10 2025

hedrok committed rVYOSONEX12f956e66f6d: ipsec: T7545: Fix show vpn debug peer.

Jul 10 2025, 2:11 PM

Jul 9 2025

hedrok added a comment to T7568: Docker: clean apt cache + clean some /tmp files.

Unfortunately my changes led to GitHub actions failure as vyos-build image was used there with additional apt-get install without prior apt-get update.
Fixed here: https://github.com/vyos/vyos-build/pull/987

Jul 9 2025, 6:48 AM · VyOS Rolling