netbirdio/netbird · error

create router: %w

Error message

create router: %w

What it means

Error "create router: %w" thrown in netbirdio/netbird.

Source

Thrown at client/firewall/nftables/manager_linux.go:80

	notrackPreroutingChain *nftables.Chain

	extMonitor *externalChainMonitor
}

// Create nftables firewall manager
func Create(wgIface iFaceMapper, mtu uint16) (*Manager, error) {
	m := &Manager{
		rConn:   &nftables.Conn{},
		wgIface: wgIface,
	}

	tableName := getTableName()
	workTable := &nftables.Table{Name: tableName, Family: nftables.TableFamilyIPv4}

	var err error
	m.router, err = newRouter(workTable, wgIface, mtu)
	if err != nil {
		return nil, fmt.Errorf("create router: %w", err)
	}

	m.aclManager, err = newAclManager(workTable, wgIface, chainNameRoutingFw)
	if err != nil {
		return nil, fmt.Errorf("create acl manager: %w", err)
	}

	if wgIface.Address().HasIPv6() {
		if err := m.createIPv6Components(tableName, wgIface, mtu); err != nil {
			return nil, fmt.Errorf("create IPv6 firewall: %w", err)
		}
	}

	m.extMonitor = newExternalChainMonitor(m)

	return m, nil
}

View on GitHub (pinned to 93e97f4bf1)

When it happens

Trigger: Thrown at client/firewall/nftables/manager_linux.go:80 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/0f0dd410963d83de. Report an issue: GitHub.