A
CCESS
C
ONTROL
L
ISTS
3-101
- 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
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 select “IP,” enter a subnet
address and the mask for an address range. Set any other required criteria,
such as service type, protocol type, or TCP control code. Then click Add.
To Next Page
Loading...
Need help?
General
