if (hdr.getGatewayIPAddress().isAnyLocalAddress()) {
cfg.addRoute(serverAddr, null, device, false);
cfg.addRoute(networkAddress, null, device, false);
} else {
cfg.addRoute(networkAddress, new IPv4Address(hdr.getGatewayIPAddress()), device, false);
}
byte[] routerValue = msg.getOption(DHCPMessage.ROUTER_OPTION);
if (routerValue != null && routerValue.length >= 4) {
IPv4Address routerIP = new IPv4Address(routerValue, 0);