{"record":{"id":"7e1fc9dcacbc49a1","repo":"netbirdio/netbird","slug":"remove-external-chain-rules-w","errorCode":null,"errorMessage":"remove external chain rules: %w","messagePattern":"remove external chain rules: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"client/firewall/nftables/router_linux.go","lineNumber":1304,"sourceCode":"func isNetbirdAcceptRuleTag(userData []byte) bool {\n\tswitch string(userData) {\n\tcase userDataAcceptForwardRuleIif,\n\t\tuserDataAcceptForwardRuleOif,\n\t\tuserDataAcceptInputRule:\n\t\treturn true\n\t}\n\treturn false\n}\n\nfunc (r *router) removeAcceptFilterRules() error {\n\tvar merr *multierror.Error\n\n\tif err := r.removeFilterTableRules(); err != nil {\n\t\tmerr = multierror.Append(merr, err)\n\t}\n\n\tif err := r.removeExternalChainsRules(); err != nil {\n\t\tmerr = multierror.Append(merr, fmt.Errorf(\"remove external chain rules: %w\", err))\n\t}\n\n\treturn nberrors.FormatErrorOrNil(merr)\n}\n\nfunc (r *router) removeFilterTableRules() error {\n\tif r.filterTable == nil {\n\t\treturn nil\n\t}\n\n\tipt, err := iptables.NewWithProtocol(r.iptablesProto())\n\tif err != nil {\n\t\tlog.Debugf(\"iptables not available, using nftables to remove filter rules: %v\", err)\n\t\treturn r.removeAcceptRulesFromTable(r.filterTable)\n\t}\n\n\tif err := r.removeAcceptFilterRulesIptables(ipt); err != nil {\n\t\tlog.Debugf(\"iptables removal failed (table may be incompatible), falling back to nftables: %v\", err)","sourceCodeStart":1286,"sourceCodeEnd":1322,"githubUrl":"https://github.com/netbirdio/netbird/blob/93e97f4bf1ad715072dcb3fb6cdb1763431b5a9c/client/firewall/nftables/router_linux.go#L1286-L1322","documentation":"Error \"remove external chain rules: %w\" thrown in netbirdio/netbird.","triggerScenarios":"Thrown at client/firewall/nftables/router_linux.go:1304 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"}