return &FakeNetwork{
		NetworkInterfaces: make([]net.Interface, 0),
		Address:           make(map[string][]net.Addr),
	}
}

// AddInterfaceAddr create an interface and its associated addresses for FakeNetwork implementation.
func (f *FakeNetwork) AddInterfaceAddr(intf *net.Interface, addrs []net.Addr) {
	f.NetworkInterfaces = append(f.NetworkInterfaces, *intf)
	f.Address[intf.Name] = addrs
}

				},
			},
		},
	}

	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			nw := fake.NewFakeNetwork()
			for _, pair := range tc.itfAddrsPairs {
				nw.AddInterfaceAddr(&pair.itf, pair.addrs)
			}

			for _, family := range []v1.IPFamily{v1.IPv4Protocol, v1.IPv6Protocol} {
				npa := NewNodePortAddresses(family, tc.cidrs)

	addrs1 := []net.Addr{&net.IPNet{IP: netutils.ParseIPSloppy("2001:db8::"), Mask: net.CIDRMask(64, 128)}}
	fp.networkInterfacer.(*proxyutiltest.FakeNetwork).AddInterfaceAddr(&itf, addrs)
	fp.networkInterfacer.(*proxyutiltest.FakeNetwork).AddInterfaceAddr(&itf1, addrs1)
	fp.nodePortAddresses = proxyutil.NewNodePortAddresses(v1.IPv4Protocol, []string{"100.101.102.0/24"})

	fp.syncProxyRules()

	addrs := []net.Addr{
		&net.IPNet{IP: netutils.ParseIPSloppy("127.0.0.1"), Mask: net.CIDRMask(8, 32)},
		&net.IPNet{IP: netutils.ParseIPSloppy("::1/128"), Mask: net.CIDRMask(128, 128)},
	}
	networkInterfacer.AddInterfaceAddr(&itf, addrs)
	itf1 := net.Interface{Index: 1, MTU: 0, Name: "eth0", HardwareAddr: nil, Flags: 0}
	addrs1 := []net.Addr{
		&net.IPNet{IP: netutils.ParseIPSloppy(testNodeIP), Mask: net.CIDRMask(24, 32)},

	addrs := []net.Addr{
		&net.IPNet{IP: netutils.ParseIPSloppy("127.0.0.1"), Mask: net.CIDRMask(8, 32)},
		&net.IPNet{IP: netutils.ParseIPSloppy("::1/128"), Mask: net.CIDRMask(128, 128)},
	}
	networkInterfacer.AddInterfaceAddr(&itf, addrs)
	itf1 := net.Interface{Index: 1, MTU: 0, Name: "eth0", HardwareAddr: nil, Flags: 0}
	addrs1 := []net.Addr{
		&net.IPNet{IP: netutils.ParseIPSloppy(testNodeIP), Mask: net.CIDRMask(24, 32)},