RuggedCom RuggedRouter RX1100 - Manual (Page 129)

14. Configuring The Firewall
Revision 1.14.3 129 RX1000/RX1100™
14.6.2. Network Interfaces
Figure 14.4. Firewall Network Interfaces
This menu allows you to add, delete and configure network interfaces. Add a new interface by selecting
the “Add a new network interface” link or by clicking on the add-above or add-below images in the
Add field. Reorder the interfaces by clicking on the arrows under the Move field.
Clicking on a link under the Interface field will allow you to edit or delete the interface. Note that if you
delete an interface you should remove any rules that reference it.
You may also make changes by manually editing the interfaces file.
Note
If you use a WAN interface in the firewall, the interface will be referred to by its name. Some
WAN changes (such as changing the number of channels used by a T1/E1 logical interface) will
change the name. Ensure that the entries in this menu reflect the correct interface names.
Figure 14.5. Editing Network Interface's Firewall Settings
The dhcp option should be selected if interface is assigned an IP address via DHCP or is used by a
DHCP server running on the firewall. The firewall will be configured to allow DHCP traffic to and from
the interface even when the firewall is stopped. You may also wish to use this option if you have a
static IP but you are on a LAN segment that has a lot of laptops that use DHCP and you select the
norfc1918 option (see below).