RBM11G and LTE card - do I need firewall rules ?

RouterOS Beginner Basics
1

Greetings !
I’ve recently aquired RBM11G, Sierra LTE card and panel case/antenna. It’s connected to RB3011 and everything is working perfectly, although I don’t use it as a bridge.
This morning I’ve checked firewall rules and I don’t have none in it, except standard masquerade rule in NAT.

  • Do I need set of standard filters like on RB3011 (accept ICMP, accept input, accept established/related, drop invalid) or not ?
    Additional question:
  • On RB3011, I’ve opened 61244 port for incoming TCP connections and everything worked with my 2 vDSL connections. However, when using LTE I no longer have open port. Do I also need to add rule on RBM11G in order to be opened again ?

Thanks !

2

On the RBM11G you will need rules to block access to it from WAN side

Yes, you will have to enable port forwarding on RBM11G for port 61244