vrf: fix route filtering to preserve IPAM-configured routes#1227
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squeed merged 1 commit intocontainernetworking:mainfrom Feb 16, 2026
Merged
vrf: fix route filtering to preserve IPAM-configured routes#1227squeed merged 1 commit intocontainernetworking:mainfrom
squeed merged 1 commit intocontainernetworking:mainfrom
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The previous implementation filtered out routes without an explicit source address (route.Src == nil), which incorrectly removed routes added by IPAM plugins. IPAM plugins typically configure routes without setting a source address, causing those routes to be lost when the interface was moved to the VRF. The SCOPE_UNIVERSE filter already excludes local and connected routes that are automatically recreated by the kernel, so the additional route.Src filter was both unnecessary and harmful. Fixes containernetworking#1223 Signed-off-by: Marcelo Guerrero <marcegue@cisco.com>
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The previous implementation filtered out routes without an explicit source address (route.Src == nil), which incorrectly removed routes added by IPAM plugins. IPAM plugins typically configure routes without setting a source address, causing those routes to be lost when the interface was moved to the VRF.
The SCOPE_UNIVERSE filter already excludes local and connected routes that are automatically recreated by the kernel, so the additional route.Src filter was both unnecessary and harmful.
Fixes #1223