•Protocol
•Select from List
•TCP Flags
User’s Manual of
the network administrator, or a packet assigned rate limiting restrictions for forwarding. The options are as follows:
•Permit, by which forwards packets which meet the ACL criteria.
•Deny, which drops packets which meet the ACL criteria.
•Shutdown, where drops packet that meets the ACL criteria, and disables the port to which the packet was addressed. Ports are reactivated from the Port Management screen.
By which creates an ACE (Access Control Event) based on a specific protocol
Where selects from a protocols list on which ACE can be based. The possible field values are:
•Any, matches the protocol to any protocol.
•EIGRP, which indicates that the Enhanced Interior Gateway Routing Protocol (EIGRP) is used to classify network flows.
•ICMP, which indicates that the Internet Control Message Protocol (ICMP) is used to classify network flows.
•IGMP, which indicates that the Internet Group Management Protocol (IGMP) is used to classify network flows.
•TCP, which indicates that the Transmission Control Protocol is used to classify network flows.
•OSPF, by which matches the packet to the Open Shortest Path First (OSPF) protocol.
•UDP, which indicates that the User Datagram Protocol is used to classify network flows.
•Protocol ID to Match, adds
This filters packets by TCP flag. Filtered packets are either forwarded or dropped. Filtering packets by TCP flags increases packet control, and network security. The values that can be assigned are:
•Set, which enables filtering packets by selected flags.
•Unset, disables filtering packets by selected flags.
•Don’t care, which indicates that selected packets do not influence the packet filtering process.
The TCP Flags that can be selected are:
•Urg, indicates the packet is urgent.
•Ack, indicates the packet is acknowledged.
•Psh, indicates the packet is pushed.
•Rst, indicates the connection is dropped.
•Syn, indicates request to start a session.
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