public static boolean isValidIp6Cidr(String ip6Cidr) {
try {
IPv6Network network = IPv6Network.fromString(ip6Cidr);
} catch (IllegalArgumentException ex) {
return false;
}
return true;
}
public static int getIp6CidrSize(String ip6Cidr) {
IPv6Network network = null;
try {
network = IPv6Network.fromString(ip6Cidr);
} catch (IllegalArgumentException ex) {
return 0;
}
return network.getNetmask().asPrefixLength();
}
public static boolean isIp6InNetwork(String ip6, String ip6Cidr) {
IPv6Network network = null;
try {
network = IPv6Network.fromString(ip6Cidr);
} catch (IllegalArgumentException ex) {
return false;
}
IPv6Address ip = IPv6Address.fromString(ip6);
return network.contains(ip);
}