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bgpd: LL next-hop capabilty fixes (round 2) (backport #19277) #19295

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Merged
merged 4 commits into from
Jul 30, 2025
Merged

bgpd: LL next-hop capabilty fixes (round 2) (backport #19277) #19295

merged 4 commits into from
Jul 30, 2025

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@mergify mergify bot commented Jul 29, 2025

Found one more issue (using netlab, thank you @ipspace) when using route reflectors and IPv6 LL capability.

This is an automatic backport of pull request #19277 done by Mergify.

ton31337 added 4 commits July 29, 2025 19:17
@ton31337 @mergify
bgpd: Fix logging when IPv6 Link-Local only next-hop is used
8f1b006 
Fixes: 95d9a33 ("bgpd: Do not send link-local address which is empty (::)")

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit 244397a)
@ton31337 @mergify
bgpd: Use IPv6 Link-Local capability only if we have real LL nexthop
c6ecbcd 
Fixes: 0050f82 ("bgpd: Send LL only if LL Next Hop capability is negotiated")

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit c8f6cb7)
@ton31337 @mergify
tests: Check if route-reflector clients get unchanged next-hops
080087c 
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit e14a541)
@ton31337 @mergify
bgpd: Simplify the usage of ll_nexthop_only variable
4a02aa9 
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
(cherry picked from commit ac583d8)
@mergify mergify bot mentioned this pull request Jul 29, 2025
Merged
@frrbot frrbot bot added bgp bugfix tests Topotests, make check, etc labels Jul 29, 2025
@ton31337 ton31337 merged commit 29d3d9e into stable/10.4 Jul 30, 2025
21 checks passed
@ton31337 ton31337 deleted the mergify/bp/stable/10.4/pr-19277 branch July 30, 2025 06:17
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