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2. Allow TCP packets from class C addresses 192.168.1.0 to any
destination address when set for destination TCP port 80 (i.e., HTTP).
3. Permit all TCP packets from class C addresses 192.168.1.0 with the
TCP control code set to “SYN.”
Configuring a MAC ACL
Command Attributes
•
Action
– An ACL can contain any combination of permit or deny
rules.
•
Source/Destination
Address Type – Use “Any” to include all
possible addresses, “Host” to indicate a specific MAC address, or
“MAC” to specify an address range with the Address and Bitmask
fields. (Options: Any, Host, MAC; Default: Any)
•
Source/Destination MAC Address
– Source or destination MAC
address.
•
Source/Destination MAC Bit Mask
– Hexidecimal mask for source
or destination MAC address.
•
VID
– VLAN ID. (Range: 1-4094)
•
VID Bit Mask
– VLAN bitmask. (Range: 1-4094)
•
Ethernet Type
– This option can only be used to filter Ethernet II
formatted packets. (Range: 600-fff hex.)
A detailed listing of Ethernet protocol types can be found in RFC
1060. A few of the more common types include 0800 (IP), 0806 (ARP),
8137 (IPX).
•
Ethernet Type Bit Mask
– Protocol bitmask. (Range: 600-fff hex.)
Console(config-ext-acl)#permit 10.7.1.1 255.255.255.0 any
4-123
Console(config-ext-acl)#permit tcp 192.168.1.0 255.255.255.0 any
destination-port 80
Console(config-ext-acl)#permit tcp 192.168.1.0 255.255.255.0 any
control-flag 2 2
Console(config-std-acl)#
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: ......