AMX NXA-ENET24 Instruction Manual page 98

Configuring the Switch
Web – Specify the action (i.e., Permit or Deny). Specify the source and/or destination addresses.
Select the address type (Any, Host, or IP). If you select "Host," enter a specific address. If you
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Source/Destination Address Type – Specifies the source or destination IP address. Use
"Any" to include all possible addresses, "Host" to specify a specific host address in the
Address field, or "IP" to specify a range of addresses with the Address and SubMask
fields. (Options: Any, Host, IP; Default: Any)
Source/Destination IP Address – Source or destination IP address.
Source/Destination Subnet Mask – Subnet mask for source or destination address. (See
the description for SubMask on page 81.)
Service Type – Packet priority settings based on the following criteria:
Precedence – IP precedence level. (Range: 0-7)
TOS – Type of Service level. (Range: 0-15)
DSCP – DSCP priority level. (Range: 0-64)
Protocol – Specifies the protocol type to match as TCP, UDP or Others, where others
indicates a specific protocol number (0-255). (Options: TCP, UDP, Others; Default: TCP)
Source/Destination Port – Source/destination port number for the specified protocol
type. (Range: 0-65535)
Source/Destination Port Bitmask – Decimal number representing the port bits to match.
(Range: 0-65535)
Control Code – Decimal number (representing a bit string) that specifies flag bits in byte
14 of the TCP header. (Range: 0-63)
Control Code Bitmask – Decimal number representing the code bits to match.
The control bitmask is a decimal number (for an equivalent binary bit mask) that is
applied to the control code. Enter a decimal number, where the equivalent binary bit "1"
means to match a bit and "0" means to ignore a bit. The following bits may be specified:
1 (fin) – Finish
2 (syn) – Synchronize
4 (rst) – Reset
8 (psh) – Push
16 (ack) – Acknowledgement
32 (urg) – Urgent pointer
For example, use the code value and mask below to catch packets with the following
flags set:
SYN flag valid, use control-code 2, control bitmask 2
Both SYN and ACK valid, use control-code 18, control bitmask 18
SYN valid and ACK invalid, use control-code 2, control bitmask 18
NXA-ENET Software Management Guide