SetToWildcard
status_t SetToWildcard(int family, uint16 port = 0);
if (local.SetToWildcard(peer.Family()) == B_OK)
fAddress.SetToWildcard(fFamily);
address.Address().SetToWildcard(fFamily, fPort);
address.SetToWildcard(family);
local.SetToWildcard(AF_INET, DHCP_CLIENT_PORT);
wildcard.SetToWildcard(AF_INET);