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• Src/Dst Address – Source or destination IP address.
• Src/Dst SubMask – Subnet mask for source or destination address.
(See the description for SubMask on page 3-70.)
• 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)
• Src/Dst Port – Source/destination port number for the specified
protocol type. (Range: 0-65535)
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 3-35. Configuring Extended IP ACLs
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.