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Examples: Defining Firewall Filters
The following examples illustrate how to define firewall filters:
Example: Blocking Telnet and SSH Access
Example: Blocking TFTP Access
Example: Accepting DHCP Packets with Specific Addresses
Example: Defining a Policer for a Destination Class
Example: Counting IP Option Packets
Example: Accepting OSPF Packets from Certain Addresses
Example: Matching Packets Based on Two Unrelated Criteria
Example: Counting Both Accepted and Rejected Packets
Example: Blocking TCP Connections to a Certain Port Except from BGP Peers
Example: Accepting Packets with Specific IPv6 TCP Flags
Example: Setting a Rate Limit for Incoming Layer 2 Control Packets
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