Cisco Systems SF300-24P Manual de usuario descargar pdf (Pagina 425)

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101

Access Control

IPv6-Based ACLs

Cisco Small Business 300 Series Managed Switch Administration Guide 408

- Range—Select a range of TCP/UDP source ports to which the packet is

matched.

• Destination Port—Select one of the available values. (They are the same as

for the Source Port field described above).

NOTE You must specify the IPv6 protocol for the ACL before you can

configure the source and/or destination port.

• TCP Flags—Select one or more TCP flags with which to filter packets.

Filtered packets are either forwarded or dropped. Filtering packets by TCP

flags increases packet control, which increases network security.

- Set—Match if the flag is SET.

- Unset—Match if the flag is Not SET.

- Dont care—Ignore the TCP flag.

• Type of Service—The service type of the IP packet.

• ICMP—If the ACL is based on ICMP, select the ICMP message type that is

used for filtering purposes. Either select the message type by name or enter

the message type number. If all message types are accepted, select Any.

- Any—All message types are accepted.

- Select from list—Select message type by name from the drop-down list.

- ICMP Type to Match—Number of message type that is to be used for

filtering purposes.

• ICMP Code—The ICMP messages may have a code field that indicates how

to handle the message. Select one of the following options, to configure

whether to filter on this code:

- Any—Accept all codes.

- User defined—Enter an ICMP code for filtering purposes.

STEP 5 Click Apply.

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