Skip to content

squelch router advertisements on uplink ports#236

Merged
rcgoodfellow merged 1 commit intomainfrom
ry/disable-host-route-exchange-for-uplinks
Mar 8, 2026
Merged

squelch router advertisements on uplink ports#236
rcgoodfellow merged 1 commit intomainfrom
ry/disable-host-route-exchange-for-uplinks

Conversation

@rcgoodfellow
Copy link
Copy Markdown
Contributor

@rcgoodfellow rcgoodfellow commented Mar 7, 2026 •
edited
Loading

Fixes

by disabling the exchange_routes interface property on uplinks in uplinkd.

I considered turning off exchange_routes for tfport_rear interfaces also, but any reason to do that at this time would be speculative as we don't anticipate activity on the underlay that would require changing the default value.

@rcgoodfellow rcgoodfellow force-pushed the ry/disable-host-route-exchange-for-uplinks branch from fc2f18b to c2aa523 Compare March 8, 2026 04:14
@rcgoodfellow
Copy link
Copy Markdown
Contributor Author

rcgoodfellow commented Mar 8, 2026

Tested in a4x2. Everything comes up and the links for an IPv6 unnumbered configuration look like this.

root@oxz_switch:~# ipadm
ADDROBJ           TYPE     STATE        ADDR
lo0/v4            static   ok           127.0.0.1/8
lo0/v6            static   ok           ::1/128
oxBootstrap0/ll   addrconf ok           fe80::8:20ff:fefc:8a9c%oxBootstrap0/10
oxBootstrap0/bootstrap6 static ok       fdb0:a840:2500:1::2/64
oxControlService0/ll addrconf ok        fe80::8:20ff:feba:f97%oxControlService0/10
oxControlService0/omicron6 static ok    fd00:17:1:d01::2/64
tfportint0_0/ll   addrconf ok           fe80::aa40:25ff:fe7f:36f%tfportint0_0/10
tfportrear0_0/ll  addrconf ok           fe80::aa40:25ff:fe7f:370%tfportrear0_0/10
tfportrear1_0/ll  addrconf ok           fe80::aa40:25ff:fe7f:371%tfportrear1_0/10
tfportrear2_0/ll  addrconf ok           fe80::aa40:25ff:fe7f:372%tfportrear2_0/10
tfportrear3_0/ll  addrconf ok           fe80::aa40:25ff:fe7f:373%tfportrear3_0/10
tfportqsfp0_0/ll  addrconf ok           fe80::aa40:25ff:fe7f:390%tfportqsfp0_0/10
tfportqsfp1_0/ll  addrconf ok           fe80::aa40:25ff:fe7f:394%tfportqsfp1_0/10

root@oxz_switch:~# ipadm show-ifprop -p exchange_routes
IFNAME      PROPERTY        PROTO PERM CURRENT    PERSISTENT DEFAULT    POSSIBLE
lo0         exchange_routes ipv4  rw   on         --         on         on,off
lo0         exchange_routes ipv6  rw   on         --         on         on,off
oxBootstrap0 exchange_routes ipv4 rw   on         --         on         on,off
oxBootstrap0 exchange_routes ipv6 rw   on         --         on         on,off
oxControlService0 exchange_routes ipv4 rw on      --         on         on,off
oxControlService0 exchange_routes ipv6 rw on      --         on         on,off
tfportint0_0 exchange_routes ipv4 rw   on         --         on         on,off
tfportint0_0 exchange_routes ipv6 rw   on         --         on         on,off
tfportrear0_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear0_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportrear1_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear1_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportrear2_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear2_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportrear3_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear3_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportqsfp0_0 exchange_routes ipv4 rw  off        --         on         on,off
tfportqsfp0_0 exchange_routes ipv6 rw  off        --         on         on,off
tfportqsfp1_0 exchange_routes ipv4 rw  off        --         on         on,off
tfportqsfp1_0 exchange_routes ipv6 rw  off        --         on         on,off

@rcgoodfellow rcgoodfellow marked this pull request as ready for review March 8, 2026 16:19
@rcgoodfellow rcgoodfellow mentioned this pull request Mar 8, 2026
Merged
@rcgoodfellow
Copy link
Copy Markdown
Contributor Author

rcgoodfellow commented Mar 8, 2026

IPv4 setup also looks good.

root@oxz_switch:~# ipadm
ADDROBJ           TYPE     STATE        ADDR
lo0/v4            static   ok           127.0.0.1/8
tfportqsfp0_0/uplink1 static ok         198.51.101.2/30
tfportqsfp1_0/uplink1 static ok         198.51.101.10/30
lo0/v6            static   ok           ::1/128
oxBootstrap0/ll   addrconf ok           fe80::8:20ff:feaa:a445%oxBootstrap0/10
oxBootstrap0/bootstrap6 static ok       fdb0:a840:2500:1::2/64
oxControlService0/ll addrconf ok        fe80::8:20ff:fe6c:b97e%oxControlService0/10
oxControlService0/omicron6 static ok    fd00:17:1:d01::2/64
tfportint0_0/ll   addrconf ok           fe80::aa40:25ff:fe15:d768%tfportint0_0/10
tfportrear0_0/ll  addrconf ok           fe80::aa40:25ff:fe15:d769%tfportrear0_0/10
tfportrear1_0/ll  addrconf ok           fe80::aa40:25ff:fe15:d76a%tfportrear1_0/10
tfportrear2_0/ll  addrconf ok           fe80::aa40:25ff:fe15:d76b%tfportrear2_0/10
tfportrear3_0/ll  addrconf ok           fe80::aa40:25ff:fe15:d76c%tfportrear3_0/10

root@oxz_switch:~# ipadm show-ifprop -p exchange_routes
IFNAME      PROPERTY        PROTO PERM CURRENT    PERSISTENT DEFAULT    POSSIBLE
lo0         exchange_routes ipv4  rw   on         --         on         on,off
lo0         exchange_routes ipv6  rw   on         --         on         on,off
oxBootstrap0 exchange_routes ipv4 rw   on         --         on         on,off
oxBootstrap0 exchange_routes ipv6 rw   on         --         on         on,off
oxControlService0 exchange_routes ipv4 rw on      --         on         on,off
oxControlService0 exchange_routes ipv6 rw on      --         on         on,off
tfportint0_0 exchange_routes ipv4 rw   on         --         on         on,off
tfportint0_0 exchange_routes ipv6 rw   on         --         on         on,off
tfportrear0_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear0_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportrear1_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear1_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportrear2_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear2_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportrear3_0 exchange_routes ipv4 rw  on         --         on         on,off
tfportrear3_0 exchange_routes ipv6 rw  on         --         on         on,off
tfportqsfp0_0 exchange_routes ipv4 rw  off        --         on         on,off
tfportqsfp0_0 exchange_routes ipv6 rw  off        --         on         on,off
tfportqsfp1_0 exchange_routes ipv4 rw  off        --         on         on,off
tfportqsfp1_0 exchange_routes ipv6 rw  off        --         on         on,off

@rcgoodfellow rcgoodfellow requested a review from Nieuwejaar March 8, 2026 16:36
@rcgoodfellow rcgoodfellow added this to the 19 milestone Mar 8, 2026
@rcgoodfellow rcgoodfellow merged commit c0bf0a3 into main Mar 8, 2026
6 checks passed
@rcgoodfellow rcgoodfellow deleted the ry/disable-host-route-exchange-for-uplinks branch March 8, 2026 18:56
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@Nieuwejaar Nieuwejaar Nieuwejaar approved these changes

Assignees

No one assigned

Labels

None yet

Projects

None yet

Milestone

19

Development

Successfully merging this pull request may close these issues.

2 participants

@rcgoodfellow @Nieuwejaar