8 • Filter IP | T1/E1 DACS Administrators’ Reference Guide |
|
|
The following sections provide detailed descriptions of the configurable filter IP parameters.
Name (filterIpName)
This is the name of the filter
Direction (filterIpDirection)
Specifies the direction of the filter (that is, whether it applies to data packets inbound or outbound from the DACS). The filter only applies to the Superuser and the Monitor Users through the Ethernet interface. (Since the DACS and WAN connections function as a transparent pipe, neither of the two users can utilize these interfaces, only the Ethernet interface.) The following options are available:
•
•
•
•
Action (filterIpAction)
Specifies the action to effect the packet. The action decides whether to block or pass the packet. The following options are available:
•
Note If there are any applied PASS filters, then at least one of them must match or the packet will be dropped.
•
•
All wrap filters are inbound only.
Source IP (filterIpSourceIp)
This is the Source IP address in the IP header, it is used when comparing a packet’s source address.
Source IP Mask (filterIpSourceMask)
This is the Source IP Mask (filterIpSourceMask) used when comparing a packet’s source address. Bit positions that are set to 1 will be compared and 0’s will be ignored. Thus, a setting of 0.0.0.0 will have the effect of dis- abling source IP address comparison.
Destination IP (filterIpDestinationIp)
This is the destination IP address in the IP header used when comparing a packet’s destination address.
52 | Defining a filter |