netbirdio/netbird · error

refresh v4 rules: %w

Error message

refresh v4 rules: %w

What it means

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

Source

Thrown at client/firewall/nftables/manager_linux.go:357

	}
	return r.DeleteRouteRule(rule)
}

// routerForRuleID picks the router holding the rule with the given id, using
// the supplied lookup. If the cached maps disagree (or both miss), it refreshes
// from the kernel once and re-checks before falling back to the v4 router.
func (m *Manager) routerForRuleID(id string, has func(*router, string) bool) (*router, error) {
	if has(m.router, id) {
		return m.router, nil
	}
	if m.hasIPv6() && has(m.router6, id) {
		return m.router6, nil
	}
	if !m.hasIPv6() {
		return m.router, nil
	}
	if err := m.router.refreshRulesMap(); err != nil {
		return nil, fmt.Errorf("refresh v4 rules: %w", err)
	}
	if err := m.router6.refreshRulesMap(); err != nil {
		return nil, fmt.Errorf("refresh v6 rules: %w", err)
	}
	if has(m.router6, id) && !has(m.router, id) {
		return m.router6, nil
	}
	return m.router, nil
}

func (m *Manager) IsServerRouteSupported() bool {
	return true
}

func (m *Manager) IsStateful() bool {
	return true
}

View on GitHub (pinned to 93e97f4bf1)

When it happens

Trigger: Thrown at client/firewall/nftables/manager_linux.go:357 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/b756295df4ef152f. Report an issue: GitHub.