_ = ipt.SaveInto(utiliptables.TableNAT, buf)
		natRules := strings.Split(buf.String(), "\n")
		var hasMasqueradeJump, hasMasqRandomFully bool
		for _, line := range natRules {
			rule, _ := iptablestest.ParseRule(line, false)
			if rule != nil && rule.Chain == kubePostroutingChain && rule.Jump != nil && rule.Jump.Value == "MASQUERADE" {
				hasMasqueradeJump = true
				if rule.RandomFully != nil {
					hasMasqRandomFully = true