[GoD-Tony]

Originally Posted by Sdg Tony, Any way to get ban ip and id here?

Untested...

public Action:OnBanClient(client, time, flags, const String:reason[], const String:kick_message[], const String:command[], any:admin)
{
	if (StrEqual(command, "SMAC"))
	{
		// Ban IP and ID.
		BanClient(client, time, BANFLAG_AUTHID|BANFLAG_NOKICK, reason, kick_message);
		BanClient(client, time, BANFLAG_IP, reason, kick_message);
		
		PrintToChatAll("Banned %N. (%s)", client, reason);
		
		return Plugin_Stop;
	}

	return Plugin_Continue;
}