> # Protocol Information

> The protocol information is required in each filter. It identifies the name or number of an IP protocol. You can specify the IP protocol in one of two ways:

> - Specify an integer ranging from 0 to 255. This number represents the IP protocol.
> - Specify the name of a protocol including, but not restricted to, Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and Internet Control Message Protocol (ICMP).

> Note When configuring IPv4-ACLs or IPv6-ACLs on Gigabit Ethernet interfaces, only use the TCP or ICMP options.

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