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C
ONFIGURING
THE
S
WITCH
3-110
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.
Figure 3-45 ACL Configuration - Extended IP
CLI
– This example adds three rules:
1. Accept any incoming packets if the source address is in subnet 10.7.1.x.
For example, if the rule is matched; i.e., the rule (10.7.1.0 &
255.255.255.0) equals the masked address (10.7.1.2 & 255.255.255.0),
the packet passes through.
Summary of Contents for 8708L2
Page 2: ......
Page 24: ...TABLES xxiv ...
Page 28: ...FIGURES xxviii ...
Page 290: ...CONFIGURING THE SWITCH 3 238 ...
Page 584: ...COMMAND LINE INTERFACE 4 294 ...
Page 592: ...TROUBLESHOOTING B 4 ...
Page 605: ......