User guide

54
INSTALLATIONCONFIGURATIONOPERATION
FURTHER
INFORMATION
INDEX
Setting IP access control
The golden rule with this feature is ‘Include before you exclude’ or to put it another way
‘Arrange allowed addresses in the list before the denied addresses’.
This is because the positions of entries in the list are vitally important. Once a range of
addresses is denied access, it is not possible to make exceptions for particular addresses
within that range. For instance, if the range of addresses from A to F are denied access
rst, then the address C could not be granted access lower down the list. Address C
needs to be placed in the list before the denied range.
IMPORTANT: This feature should be congured with extreme caution as it is possible to deny
access to everyone. If such an error occurs, you will need to perform a reset to factory default
settings in order to regain access.
To dene a new IP access control entry
1 Click the Add button to display a popup dialog:
2 Enter the base network address, the mask and select the appropriate access setting.
3 Click the OK button.
To reorder access control entries
IMPORTANT: When reordering, ensure that any specic allowed addresses are listed higher in
the list than any denied addresses. Take care not to invoke any deny access settings that would
exclude valid users.
1 In the access control list, click on the entry to be moved.
2 Click the Up or Down buttons as appropriate.
To edit/remove access control entries
1 In the access control list, click on the appropriate entry.
2 Click either the Edit or Remove button as appropriate.
Network/Address
Enter the network address
that is to be allowed or denied
access. If a range of addresses is
being specied then specify any
one of the addresses within the
range and use the Mask entry to
indicate the size of the range.
Mask
Enter an IP network mask that
indicates the range of addresses
that are to be allowed or denied
access. For instance, if only a
single specied IP address were
to be required, the mask entry
would be 255.255.255.255 in
order to specify a single location.
Access
Use the arrow buttons
to select either ‘Allow’ or
‘Deny’ as appropriate.
In the list, access control addresses prexed by ‘+’ are allow entries while those prexed
by ‘– ‘ are deny entries.
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
2 Click the ‘Congure’ button in the top right corner.
3 Click the ‘Network Conguration’ option.