CSX400 Configuration with QuickSET
CSX400 and CSX400-DC User’s Guide 103
Source IP — The Source IP field displays the IP address of the source device accorded the
permissions set in the permissions field. To set permissions for a source device, place the cursor in
the Source IP field and type the IP address of the source that you wish to set permissions.
Source Mask — Displays the mask for the Source IP address specified in the Source IP field. To
set the mask for the specified source IP address, place the cursor in the Source Mask field and type
the mask.
The default Mask for both the source and destination addresses is 0.0.0.0, which masks the entire
address, causing all addresses to match the filter. In other words, the default access control list
allows all traffic to pass. Entering a mask of 255.255.255.255 causes only packets matching the
exact address you have entered to match the filter.
For a Class C address, entering a mask of 255.255.255.0 causes packets with the same class C
subnet as the IP address to match, thereby causing the access control filter to apply to all hosts on
this particular subnet.
Dest IP — The Dest IP field displays the IP address of the destination device accorded the
permissions set in the permissions field. To set permissions for a certain destination device, place
the cursor in the Dest IP field and type the IP address of the destination for which you wish to set
permissions.
Dest Mask — Displays the mask for the Destination IP address specified in the Dest IP field. To
set the mask for the specified destination IP address, place the cursor in the Dest Mask field and
type the mask.
Protocol — Use this pull-down list to select the upper layer protocol that you want to apply to the
access control filter. Each access control filter can apply to traffic for all protocols included in the
TCP/IP suite, or just to traffic for a single protocol.
Permission — Use this pull-down list to set the permissions for the specified control filter.
Options for this field include permit, deny, permit bi-directional, or deny bi-directional. Choosing
permit allows the specified packets to be forwarded, while choosing deny blocks the specified
packets. Choosing permit bi-directional or deny bi-directional either permits or denies traffic to
and from a specified source or destination.