Which benefit does an extended ACL offer over a standard ACL?
A “Standard” ACL allows you to prioritize traffic by the Source IP address. An “Extended” ACL provides greater control over what traffic is prioritized. Extended ACLs can use any or all of the following parameters: Source IP address.
What is the range of standard ACL and extended ACL?
Table 1 – ACL Number Ranges
| Protocol | Range |
|---|---|
| Standard IP | 1–99 and 1300–1999 |
| Extended IP | 100–199 and 2000–2699 |
| Ethernet type code | 200–299 |
| Ethernet address | 700–799 |
What is the range of extended ACL?
100–199
The extended access list numbers range from 100–199. If conditions are met, traffic will be allowed. If conditions are met, traffic will be denied.
What can you do with Extended ACL in Cisco router?
With the extended ACL, you can also block source and destination for single hosts or entire networks. You can also use an extended ACL to filter traffic based on protocol information (IP, ICMP, TCP, UDP). The configuration of an extended ACL in a Cisco router for TCP is as follows:
How is an extended access list ( ACL ) used?
It is one of the types of Access-list which is mostly used as it can distinguish IP traffic therefore the whole traffic will not be permitted or denied like in standard access-list . These are the ACL which uses both source and destination IP address and also the port numbers to distinguish IP traffic.
How to delete a line from the Extended ACL?
To delete a line from the extended ACL, use the delete command. Examples The following example deletes line 10 from the extended ACL testextacl. Related Commands (config-ext-nacl) list (config-ext-nacl) move delete Deletes the specified entry. line-num Identifies the entry at a specific line number in the access list.
When do you define an ACL on a routing device?
When you define an ACL on a routing device for a specific interface, all the traffic flowing through will be compared with the ACL statement which will either block it or allow it. The criteria for defining the ACL rules could be the source, the destination, a specific protocol, or more information.