Explain in own words. 1. Explain how ACLs filter traffic. 2. Explain how ACLs us
ID: 3814957 • Letter: E
Question
Explain in own words.
1. Explain how ACLs filter traffic.
2. Explain how ACLs use wildcard masks.
3. Explain how to create ACLs.
4. Explain how to place ACLs.
5. How do you configure standard IPv4 ACLs to filter traffic to meet networking requirements.
6. How do you configure a standard ACL to secure vty access.
7. Explain how a router processes packets when an ACL is applied.
8. What is an ACL?
9. What is the purpose of ACLs Packing Filtering?
10.What is the Purpose of ACLs?
11.Explain Wildcard Masks in ACLs.
12.Give an example of Wildcard Masks in ACLs.
13.How do you calculate the Wildcard Mask?
14.Explain the command access-list 1 permit 0.0.0.0 255.255.255.255.
15.Explain the command access-list permit any.
16.Explain the command access-list 1 permit 192.168.10.10 0.0.0.0
17.Explain the command access-list 1 permit host 192.168.10.10.
18.What are the general Guidelines for Creating ACLS?
19.What are the best practices for ACL?
20.Where do you place ACL?
21.What are the three basic rules for ACLs?
22. Explain the command access-list access-list-number
{deny|permit|remark} source[source-wildcard] [log]
23.What are the procedures for configuring Standard ACLs?
24.What is the syntax for Named Standard IPv4 ACL Syntax?
Term and commands (Explain in own words)
§ Access list (ACL)
§ Packet filtering
§ Access control entries (ACEs)
§ Standard ACLs
§ Extended ACLs
§ Inbound ACLs
§ Outbound ACLs
§ Wildcard masking
§ Wildcard mask bit 0
§ Wildcard mask bit 1
§ access-list access-list-number permit ip_address wildcard_mask
§ host
§ any
§ access-list access-list-number { deny | permit | remark }source [ source-wildcard ][ log ]
§ show access-lists
§ no access-list access-list-number
§ ip access-group {access-list-number | access-list-name} { in | out }
§ ip access-list standard name
§ clear access-list counters
§ access-class access-list-number { in |out }
Explanation / Answer
1)The process of ACLs filter traffic is:
For that we need to create an ACL.
After that configure and add rules to the ACL.
ACL should specify forwarded or discarded traffic.
2)In Access Control Lists (ACL) Wildcard masks are used to identify individual host, a network in a network to permit or deny access .A 0 bit position means that the corresponding bit position in the address.
3)To create an Access Control List (ACL), deny all the IP addresses from a network, from accessing the servers at server network.
8)ACL: Access control list (ACL) is a table that tells a operating system access rights of each user to a particular system object, such as a file or directory.
10)ACL as a Layer 3 device, a packet-filtering router thatb is used to determine whether to permit or deny traffic based on source and destination IP addresses.
11)In Access Control Lists (ACL) Wildcard masks are used to identify individual host, a network in a network to permit or deny access .A 0 bit position means that the corresponding bit position in the address.
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