RAD Data comm Modular Access Device with Integrated Router Manuel D’Utilisation

Chapter 4  Configuration 

FCD-IPM Installation and Operation Manual 

4-16 

Security Setup Menu

 

 

 

To define the Solid Firewall rules: 
1. From the Firewall Setup menu, type 2.  

The Firewall Rules menu appears (see 

). 

2. From the Firewall Rules menu, type A and perform the following: 

 

Define a link on which the rule will be applied 

 

Specify the source IP address range by defining the start and end addresses. 

 

Specify the destination IP address range by defining the start and end 
addresses. 

 

Enable the application used by the rule (user defined, Telnet, Ping, HTTP, 
FTP

, TFTP, POP3, SMTP, SNMP, SNMP Trap, BOOTP/DHCP, DNS Client 

 Server, or DNS Server to Server). 

 

If you select a user-defined application, you must specify the following 
parameters: 

 

Protocol type: TCP, UPD or ICMP 

 

 and maximum port value for TCP and UDP protocols, or 

 for ICMP protocol. 

3. Press <Esc> and save new firewall rule values. 

For example, two LANs are connected to the FCD-IPM 10BaseT ports 
(see 

). LAN 1 includes company’s Web, mail and FTP servers, which 

cab be accessed from the outside. Employees’ PCs sitting on LAN 2 must not 
be reached from the outside, but they must be allowed to access the servers. 
In order to grant access to LAN 1 and restrict it to LAN 2, you must set up two 
firewalls: 
Firewall 1 

 

Select interface – main link 

 

Select direction – inbound 

 

Define rule 1 for Web server: 

 

Start and end source IP address – 0.0.0.0 to 255.255.255.255 

 

Start and end destination IP address – 192.111.111.111 

 

Protocol – HTTP. 

 

Define rule 2 for mail server, which is identical to rule 1, except for 
destination IP addresses (192.111.111.112) and protocol (SMTP). 

 

Define rule 3 for FTP server, which is identical to rule 1, except for 
destination IP addresses (192.111.111.113) and protocol (FTP). 

 

Select interface – LAN 2 

 

Select direction – outbound.