ServSwitch Wizard
™
DXS - Digital
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Page 58
D.10 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 first, 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 configured 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.
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 specific 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 specified 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
specified 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 prefixed by ‘+’ are allow entries while those prefixed by ‘– ‘ are deny entries.
To define a new IP access control entry
1 Click the Add button to display a popup dialog:
