netbirdio/netbird · error

v4: %w

Error message

v4: %w

What it means

Error "v4: %w" thrown in netbirdio/netbird.

Source

Thrown at client/firewall/nftables/manager_linux.go:167

	// Start after initFirewall has installed the baseline external-chain
	// accept rules. start() is idempotent across Init/Close/Init cycles.
	m.extMonitor.start()

	return nil
}

// reconcileExternalChains re-applies passthrough accept rules to external
// filter chains for both IPv4 and IPv6 routers. Called by the monitor when
// tables or chains appear (e.g. after firewalld reloads).
func (m *Manager) reconcileExternalChains() error {
	m.mutex.Lock()
	defer m.mutex.Unlock()

	var merr *multierror.Error
	if m.router != nil {
		if err := m.router.acceptExternalChainsRules(); err != nil {
			merr = multierror.Append(merr, fmt.Errorf("v4: %w", err))
		}
	}
	if m.hasIPv6() {
		if err := m.router6.acceptExternalChainsRules(); err != nil {
			merr = multierror.Append(merr, fmt.Errorf("v6: %w", err))
		}
	}
	return nberrors.FormatErrorOrNil(merr)
}

func (m *Manager) initFirewall() (err error) {
	workTable, err := m.createWorkTable()
	if err != nil {
		return fmt.Errorf("create work table: %w", err)
	}

	defer func() {
		if err != nil {

View on GitHub (pinned to 93e97f4bf1)

When it happens

Trigger: Thrown at client/firewall/nftables/manager_linux.go:167 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/59ad4c50476a95da. Report an issue: GitHub.