{"record":{"id":"9e4ff6f77ec652af","repo":"netbirdio/netbird","slug":"add-v6-nat-rule-w-9e4ff6","errorCode":null,"errorMessage":"add v6 NAT rule: %w","messagePattern":"add v6 NAT rule: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"client/firewall/nftables/manager_linux.go","lineNumber":400,"sourceCode":"\t\t\treturn fmt.Errorf(\"add NAT rule: %w\", firewall.ErrIPv6NotInitialized)\n\t\t}\n\t\treturn m.router6.AddNatRule(pair)\n\t}\n\n\tif err := m.router.AddNatRule(pair); err != nil {\n\t\treturn err\n\t}\n\n\t// Dynamic routes need NAT in both tables since resolved IPs can be\n\t// either v4 or v6. This covers both DomainSet (modern) and the legacy\n\t// wildcard 0.0.0.0/0 destination where the client resolves DNS.\n\t// On v6 failure we keep the v4 NAT rule rather than rolling back: half\n\t// connectivity is better than none, and RemoveNatRule is content-keyed\n\t// so the eventual cleanup still works.\n\tif m.hasIPv6() && pair.Dynamic {\n\t\tv6Pair := firewall.ToV6NatPair(pair)\n\t\tif err := m.router6.AddNatRule(v6Pair); err != nil {\n\t\t\treturn fmt.Errorf(\"add v6 NAT rule: %w\", err)\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc (m *Manager) RemoveNatRule(pair firewall.RouterPair) error {\n\tm.mutex.Lock()\n\tdefer m.mutex.Unlock()\n\n\tif pair.Destination.IsPrefix() && pair.Destination.Prefix.Addr().Is6() {\n\t\tif !m.hasIPv6() {\n\t\t\treturn nil\n\t\t}\n\t\treturn m.router6.RemoveNatRule(pair)\n\t}\n\n\tvar merr *multierror.Error","sourceCodeStart":382,"sourceCodeEnd":418,"githubUrl":"https://github.com/netbirdio/netbird/blob/93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c/client/firewall/nftables/manager_linux.go#L382-L418","documentation":"Error \"add v6 NAT rule: %w\" thrown in netbirdio/netbird.","triggerScenarios":"Thrown at client/firewall/nftables/manager_linux.go:400 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c","analyzedAt":"2026-08-16T03:09:19.136Z","schemaVersion":2},"datasetVersion":"2026-08-16T08:17:34.114Z"}