// Check IPv6 address
        WitnessNotification.WitnessIPAddress newIPv6 = newAddresses.get(1);
        assertEquals(ipv6, newIPv6.getAddress());
        assertFalse(newIPv6.isIPv4());
        assertTrue(newIPv6.isIPv6());
        assertEquals(WitnessNotification.WitnessIPAddress.IPV6, newIPv6.getFlags());
    }

    @Test

        /** Flag indicating IPv6 address type */
        public static final int IPV6 = 0x02;

        /**
         * Creates a new witness IP address.
         *
         * @param address the IP address
         */
        public WitnessIPAddress(InetAddress address) {
            this.address = address;
            this.flags = address.getAddress().length == 4 ? IPV4 : IPV6;
        }

        /**

     * @return IP address
     */
    public InetAddress getAddress() {
        return address;
    }

    /**
     * Check if this is an IPv6 address
     *
     * @return true if IPv6, false if IPv4
     */
    public boolean isIpv6() {
        return ipv6;
    }

    /**
     * Check if RSS is supported
     *
     * @return true if RSS capable
     */
    public boolean isRssCapable() {

							Suffix: "/disk",
							Seq:    getSequences(1, 10, 0),
						},
					},
				},
				nil,
				[][]uint64{{10, 10, 10, 10, 10, 10, 10, 10, 10, 10}},
			},
			true,
		},
		// IPv6 ellipses with hexadecimal expansion
		{
			"http://[2001:3984:3989::{1...a}]/disk{1...10}",
			endpointSet{
				[]ellipses.ArgPattern{
					[]ellipses.Pattern{
						{
							Prefix: "",
							Suffix: "",

- Kube-proxy: Checked whether IPv6 was available on Linux before using it. ([#131265](https://github.com/kubernetes/kubernetes/pull/131265), [@rikatz](https://github.com/rikatz))