netbirdio/netbird · error

list chains: %v

Error message

list chains: %v

What it means

Error "list chains: %v" thrown in netbirdio/netbird.

Source

Thrown at client/firewall/nftables/router_linux.go:1331

	}

	ipt, err := iptables.NewWithProtocol(r.iptablesProto())
	if err != nil {
		log.Debugf("iptables not available, using nftables to remove filter rules: %v", err)
		return r.removeAcceptRulesFromTable(r.filterTable)
	}

	if err := r.removeAcceptFilterRulesIptables(ipt); err != nil {
		log.Debugf("iptables removal failed (table may be incompatible), falling back to nftables: %v", err)
		return r.removeAcceptRulesFromTable(r.filterTable)
	}
	return nil
}

func (r *router) removeAcceptRulesFromTable(table *nftables.Table) error {
	chains, err := r.conn.ListChainsOfTableFamily(table.Family)
	if err != nil {
		return fmt.Errorf("list chains: %v", err)
	}

	for _, chain := range chains {
		if chain.Table.Name != table.Name {
			continue
		}

		if chain.Name != chainNameForward && chain.Name != chainNameInput {
			continue
		}

		if err := r.removeAcceptRulesFromChain(table, chain); err != nil {
			return err
		}
	}

	return r.conn.Flush()
}

View on GitHub (pinned to 93e97f4bf1)

When it happens

Trigger: Thrown at client/firewall/nftables/router_linux.go:1331 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of netbirdio/netbird@93e97f4bf1 (2026-08-16). Data as JSON: /api/errors/5277f8f447cbe5f0. Report an issue: GitHub.