Configuring Access Control for FieldPoint Ethernet Network Modules

You can limit host access to a FieldPoint Ethernet network module by setting access permissions for different host machines. The default setting gives all host machines Read/Write access. To change the network security settings, complete the following steps:

1. Select the comm resource under Remote Systems and click the FieldPoint Access Control tab. If the host machine does not have access to the network module, the Access List is grayed out.
2. Make additions or changes as follows:
   • To add a host machine to the list, enter its IP address in the IP Pattern edit box, select the desired access type (Read/Write, Read Only, or Deny Access) from the Access Type list, then click the Add button. You can use the * wildcard when specifying the IP address. For example, to give Read/Write access to all hosts, enter * in the IP Pattern edit box, or to Deny Access to all machines on the 111.222.333 subnet, enter 111.222.333.* in the IP Pattern box.
   • To remove a host machine from the list, either click the entry or type the entry in the IP Pattern box, then click the Remove button or press the <Delete> key.
   • If you have an IP access list saved in a file or you want the security settings to match the settings of another network module, check the Import box, then click Browse and select the source. The settings read from the source are shown in the Access List, and you can modify them if you need to.

Note  If the Access List is not empty, any IP address that does not have a matching entry is denied access to the network module.

• To change the order of the entries in the list, select an entry and click the up arrow or down arrow button that is located next to the Access List. A new entry is always added to the end of the list. You can have multiple matching entries for a given IP address. In that case, the first entry that matches the IP address is used, starting from the bottom of the list.
• To save the Access List to a file to be used for other network modules, click the Save checkbox and enter a file name.

Note  For performance reasons, place frequently matched entries toward the bottom of the Access List.

3. When you are satisfied with the changes, click Apply. A dialog box prompts you for the password. Enter the password if one has been set for the network module, then click OK to apply the changes to the network module.