Cisco extended access list examples

Extended Access-List example on Cisco Route

Extended Access-List example on Cisco Router. In a previous lesson I covered the standard access-list, now it's time to take a look at the extended access-list. This is the topology we'll use: Using the extended access-list we can create far more complex statements. Let's say we have the following requirement Extended Access List Examples Thu, 25 Feb 2021 | Access Lists In the example shown in Figure A-15, Router A's interface Ethernet 1 is part of a Class B subnet with the address, Router A's interface Serial 0 is connected to the Internet, and the e-mail server's address is To create an extended access list, enter the ip access-list extended global configuration command. Identify the new or existing access list with a name up to 30 characters long beginning with a letter, or with a number. If you use a number to identify an extended access list, it must be from 100 to 19 Cisco Access List Configuration Examples (Standard, Extended ACL) on Routers Etc An Access Control List (ACL) is a list of rules that control and filter traffic based on source and destination IP addresses or Port numbers. This happens by either allowing packets or blocking packets from an interface on a router, switch, firewall etc

Extended Access List Examples - Access Lists - Cisco

The examples below shows how an administrator specifies a TCP or UDP port number by placing it at the end of the extended ACL statement. Logical operations can be used, such as equal (eq), not equal (neq), greater than (gt), and less than (lt). Extended Access List examples Using Port Numbers. acces-list 101 permit tcp 192.168.2. any. hostname R1 ! interface ethernet0 ip access-group 102 in ! access-list 102 permit tcp any host eq ftp access-list 102 permit tcp any host gt 1023 ! interface ethernet1 ip access-group 110 in ! access-list 110 permit host eq ftp any established access-list 110 permit host gt 1023 any. Extended Access Control Lists (ACLs) allow you to permit or deny traffic from specific IP addresses to a specific destination IP address and port. It also allows you to specify different types of traffic such as ICMP, TCP, UDP, etc. Needless to say, it is very granular and allows you to be very specific. If [ Extended access-list is generally applied close to the source but not always. In Extended access-list, packet filtering takes place on the basis of source IP address, destination IP address, Port numbers. In extended access-list, particular services will be permitted or denied . Extended ACL is created from 100 - 199 & extended range 2000. Example from my firewall. access-list outbound_access line 1 extended permit object-group obj_Meraki_outbound object-group obj_Meraki_lan object-group obj_Meraki_pub (hitcnt=0) 0x7c4d1265. access-list outbound_access line 1 extended permit tcp host eq https (hitcnt=0) 0x18a1495

Extended IP access list TEST. 2 permit ip host host 3 permit ip host host Now let's assume that an entry is needed between the two existing lines in the ACL. To do this we need to have a gap in the middle so let's assign a new set of sequence numbers. Router_(config)#ip access-list resequence. Example. In this example, we will make an access-list that denies packets sourced by the host and apply the list to R2's Fa0/0. R1(config)#access-list 101 deny tcp host host eq www R1(config)#access-list 101 permit ip any any R1(config)#int f0/0 R1(config-if)#ip access-group 101 i Extended Access-List Configuration . Let's start to configure router for our Cisco Extended ACL Configuration.. For Extended ACLs, we can use Extended Access-List Number range 100 to 199.Here, we will use 100. Router # configure terminal Router (config)# ip access-list extended 100 Router (config-ext-nacl)# permit icmp host interface ip access-group {number|name} {in|out} ip access-list extended name permit protocol any any reflect name [timeoutseconds] ip access-list extended name evaluate name. This is an example of the permit of ICMP outbound and inbound traffic, while only permitting TCP traffic that has initiated from inside, other traffic is denied

Router(config)#show ip access-list Router(config)#ip access-list extended acl-test Router(config-ext-nacl)#101 permit ip 192.168.20. any Delete Extended ACL(Name,100-199) Cisco Logging Configuration Examples; Cisco Login User and Password Configuration (SSH, RADIUS) Cisco Mac address Command Example with Arp table and Mac Address. The following tips will help you avoid unintended consequences and help you create more efficient access lists. Create the access list before applying it to an interface (or elsewhere), because if you apply a nonexistent access list to an interface and then proceed to configure the access list, the first statement is put into effect, and the implicit deny statement that follows could cause you. We modified the following commands: access-list extended. Support for TrustSec. 9.0(1) You can now use TrustSec security groups for the source and destination. You can use an identity firewall ACL with access rules. We modified the following commands: access-list extended. Unified ACL for IPv4 and IPv6. 9.0(1) ACLs now support IPv4 and IPv6. There also several other examples of Extended ACLs due to their ability to match multiple fields of a packet. For example we can configure an ACL on R1 to completely deny host thereby isolating it from the complete internetwork. R1(config)# access-list 110 deny ip host any. R1(config)# access-list 110 permit ip any an

This tutorial explains basic concepts of Cisco Access Control List (ACL), types of ACL (Standard, Extended and named), direction of ACL (inbound and outbound) and location of ACL (entrance and exit). Learn what access control list is and how it filters the data packet in Cisco router step by step with examples This tutorial explains how to configure and manage Extended Access Control List step by step in detail. Learn how to create, enable, edit, verify, update, remove (individual or all) and delete Extended ACL statements and conditions in easy language with packet tracer examples The number assigned to an extended access-list is in the range of 100-199, and an expanded range of 2000-2699. Here is the basic format of an extended access-list: access-list access-list-number [permit|deny] protocol source ip address source-wildcard destination destination-wildcard [operator Creating a Numbered Extended Access List. Extended access lists can be created using a number in the 100 - 199 or 2000 - 2699 range. In terms of functionality, numbered and named extended access lists can be used to achieve the same results; however they have differences in syntax. Figure 9-4 Extended, Numbered Access List Example To create a Extended Access Control Lists (ACL), to deny Workstation03 (IP address - 172.16..12/16) from 172.16../16 network, from accessing the Web Server (IP address - 172.20..5/16) at 172.20../16 network, we use the access-list IOS command from the global configuration mode of Router01 (which is near to the source) , as shown below

Access list in cisco packet tracer example

The Cisco ASA firewall uses access-lists that are similar to the ones on IOS routers and switches. If you have no idea how access-lists work then it's best to read my introduction to access-lists first.. Without any access-lists, the ASA will allow traffic from a higher security level to a lower security level.All other traffic is dropped Now let's start with a standard access-list! I'll create something on R2 that only permits traffic from network 192.168.12. /24: R2(config)#access-list 1 permit 192.168.12. This single permit entry will be enough. Keep in mind at the bottom of the access-list is a deny any. We don't see it but it's there When we create a Named ACL using the ip access-list command the Cisco IOS will place the the CLI in access-list configuration mode, where we can define the denied or permitted access conditions with the deny and permit commands. The optional sequence-number keyword lets us add, delete or resequence specific entries in the ACL

R1#sh ip access-list 100. Extended IP access list 100. 10 permit tcp host host eq telnet log. 20 permit tcp host any eq telnet log (8 matches) 30 permit tcp any any eq telnet log. R1# R1# R1# R1#sh ver | i Version. Cisco IOS Software, 2600 Software (C2691-ADVENTERPRISEK9-M), Version 12.4(25c), RELEASE. Extended Access List Configuration . This step is the main step of our Extended ACL Cisco Configuration example.Here, we will define the extended acl. With this extended acl, we will deny any packets coming from to And we will allow, exho-replies coming from the same source to the same destination for ping replies.. Before adding this Extended ACL list, firstly, let's. In this example, the router needs to be configured with an access list that will block the traffic that comes in the f0/0 interface from the 192.168.1./24 network Router (config-if)#ip access-group access-list-number {in | out} Extended IP Access List Example. Our trusted network is 192.168.10.. We will see in this example how we can deny Telnet traffic (tcp port 23) and permit everything else from the untrusted network reaching our trusted network To configure access list e that denies telnet traffic and allows the rest traffic, use the following command: Router#configure terminal Router(config)#ip access-list extended 101 Router(config-ext-nacl)#5 deny tcp any any eq telnet Router(config-ext-nacl)#10 permit ip any any Router(config-ext-nacl)#exit Router(config)#exit Router#show access-list

On R1 remove previously configured access-list. Instead, allow the returning traffic from HTTP (172.16.102./24) towards any destination. All other traffic from 172.16.102./24 should be discarded. Task 4 Remove previously configured ACL. Configure an access-list that blocks the TELNET/SSH traffic to R1 i Access-list 1 deny host Access-list 1 deny 192.168.1. What traffic does this ACL permit? None: The router denies all traffic because of the implicit deny statement The extended access control list can be created using an IOS command named access-list. Below shown is one of the ways we use the access-list command in the global configuration mode of Router01. One of the main points to remember is that in every Access Control List wherever we use it, in the end, there must be a deny statement An example configuration for extended ACL is given below. Note that www is a TCP protocol.: access-list 100 deny tcp host host eq www access-list 100 permit ip any any interface fastEthernet 0/0 ip access-group 100 in Observe that the command ip access-group 100 in applies the access list to the interface fe 0/0. IP.

Cisco Access List Configuration Examples (Standard

So in this example, I'll telnet to a real physical router that I have and if I type access-list? Notice standard access list in the range 1 to 99 but there's also this range which is called the expanded range. IP extended access list are in this range. But there's also this expanded range of extended IP access list for the exam Example 4-16 displays the sample debug output matching access-list 100 when 5 ping packets are sent. NOTE When debugging with a specific IP access list, be sure to stop all debugging options with the undebug all IOS command before removing IP access lists; Cisco IOS routers are prone to failure if the access list is removed before the debugging.

Cisco CCNA - What is Extended ACLs? Explained with Example

With extended access lists, you can evaluate additional packet information, such as: source and destination IP address; type of TCP/IP protocol (TCP, UDP, IP) source and destination port numbers; Two steps are required to configure an extended access list: 1. configure an extended access list using the following command Removing an access list is very easy, remember that powerful no command, type in no access-list and then the number of the access list you want to remove. Be careful, be careful. Let's say you typed in no access-list 1 permit 172.16...255.255. So you want to remove a standard access list entry you created earlier The following article describes how to configure Access Control Lists (ACL) on Cisco ASA 5500 and 5500-X firewalls. An ACL is the central configuration feature to enforce security rules in your network so it is an important concept to learn To demonstrate the usefulness of extended ACLs, we will use the following example. In the example network above, we have used the standard access list to prevent all users to access server S1. But, with that configuration, we have also disable access to S2! To be more specific, we can use extended access lists

Configure Commonly Used IP ACLs - Cisc

In Cisco IOS Software Release 12.0.1, extended ACLs began to use additional numbers (2000 to 2699). The syntax for IP Extended ACL is given below: access-list access-list-number {deny | permit} protocol source source-wildcar Standard ACL is very light weight and hence consume less processing power while extended need more processing power.Here in this lab we will learn to configure and use Extended access-list using an example lab in cisco packet tracer.We will block our clients or a network to access certain servers and allow to access few servers A beginner's tutorial on writing an extended access list (extended ACL) for the Cisco CCNA and CCNA Security. The demonstration uses the Cisco Packet Tracer. access-list example extended deny ip any4 object 02-50 access-list example extended permit ip host object 02-50 access-list example extended permit ip any4 object 02-100 . No traffic is evaluated by this rule, access-list example extended permit ip host object 02-50 because the previous rule

Examples ¶ # Using merged # Before state: # -----# # vios#sh access-lists # Extended IP access list 110 # 10 deny icmp echo dscp ef ttl eq 10-name: Merge provided configuration with device configuration cisco.ios.ios_acls: config:-afi:. Standard Access Control Lists can filter the IP traffic ONLY based on the source IP address in an IP datagram packet.. Extended Access Control Lists can filter the traffic based on many other factors. • Source and destination IP addresses. • Protocols like IP, TCP, UDP, ICMP etc. • Protocol information Port numbers for TCP and UDP, or message types for ICMP The following example configures a traffic class called acl-filter-class for use in a policy map called acl-filter. An access list permits IP packets from any source having a TTL of 0 or 1. Any packets matching the access list are dropped. The policy map is attached to the control plane

Extended Access Control Lists (ACLs) - dummie

In this configuration example we will test Cisco IOS Reflexive Access-lists Reflexive ACL takes a packet flow, gets session information and create dynamic acl entry in access-list in reverse direction. Access-lists must be named instead of numbered access-list. Here is the topology for this test mac access-list extended INE. deny host 001f.ca05.eab0 host 001a.6c30.8fde. permit any any. In the above example, I've created a named MAC ACL (called INE) which is supposed to block the source MAC of 001f.ca05.eab0 from sending frames to the destination MAC of 001a.6c30.8fde. The second entry permits everything else

CCNA Access ListsAccess List Cisco Tutorial

Easy Steps to Cisco Extended Access List Nancy Navato GSEC Practical Assignment Version 1.2e Introduction The purpose of this document is to explain in simple words how you can easily create an Extended Access List and apply it to your Cisco Router interface To enable an access list such as this for IP, we need to configure an access list in the range of 1 to 99. For example: access-list 1 permit 206.50.17. The first part shows access-list which is what all access lists start with, regardless of what network technology is used. The next part is 1 which specifies the # of the access. (Example shows the commands used to configure a standard named ACL on router R1) Keep in mind this is the same command you would use if you wanted an extended ACL just substitute standard for extended. Interface fa0/0 denies hosts on the network access to the 192.168.10. network is as follows Example of Named IP Access List. This is an example of the use of a named ACL in order to block all traffic except the Telnet connection from host to host Define the ACL: Router(config)# ip access-list extended in_to_out permit tcp host host eq telnet (notice that we can use 'telnet' instead of.

Cisco ACL Configuration Examples [cmdref

Extended Access-List - GeeksforGeek

#access-list inside-access-dmz extended permit icmp host host #access-group inside-access-dmz out interface dmz We should get the successful ping result when trying to ping from R1 to R2 access-list 110 remark Stop Bob to FTP Server and Larry to WWW Server access-list 110 deny tcp host 172.16.1. eq ftp access-list 110 deny tcp host host eq www access-list 110 permit ip any any CCNA Guide to Cisco Networking Fundamentals, Fourth Edition 21 Standard IP Access List Examples (continued) • Correct placement of a list is imperative • To view the access lists defined on your router, use the show access-lists command - For IP access lists you could also use the show ip access-lists command • If you decide that an. Router(config)# access-list 101 deny tcp 172.16.4..255.255 any eq 23 Router(config)# access-list 101 permit ip any any established - Established keyword used to connect with a TCP established connection. Named ACLs. Named access control lists are another way of creating ACLs, any example follows. Router(config)# ip access-list standard Ni

This example configures the IPv6 access list named CISCO. The first deny entry in the list denies all packets that have a destination TCP port number greater than 5000. The second deny entry denies packets that have a source UDP port number less than 5000. The second deny also logs all matches to the console R1(config)# access-list 100 permit ip 192.168.. any The above command instructs the router to allow the 192.168../24 network to reach any destination. Note that Cisco router standard and extended ACLs always use wildcards ( Cisco routers can be configured to utilize a variety of access lists like the most basic being the standard ACL, or access list. The standard access list number range is 1 to 99 and 2000 to 2699. The basic access lists in the Cisco CCNA curriculum are the standard access list, the extended access list and the named access list Generate Cisco extended access-lists. To install Net::Cisco::AccessList::Extended, copy and paste the appropriate command in to your terminal

On the Cisco ASA you define an ACL using the access-list {NAME} {standard|extended} {permit|deny} SOURCE DESTINATION. First lets take a look at an sample standard ACL where we permit traffic from the host! access-list EXAMPLE_STD standard permit host To accomplish this we will configure an Extended ACL. We will create an extended access list called 100, configuring it to deny PC1 ( from pinging (ICMP Protocol) Router 1 ( Router 1 Configuration. Router#conf t. Router(config)#access-list 100 deny icmp host 192.168.1.

When applying an extended access list to the interface and I put OUT (ip access-group 110 OUT) as the direction the access list does not apply. However using IN on the interface (ip access-group 110 IN) this works perfectly. I think it's because the default route is pointing to 172.16..1, which is OUT and the others are seen as IN by the router Outbound Traffic Control Using a Access List - Extended ACL--You can edit this template and create your own diagram. Creately diagrams can be exported and added to Word, PPT (powerpoint), Excel, Visio or any other document

The extended ACL can be created using an IOS command named an access-list. Extended ACL can be configured using an IOS command named access-group command. To use access-list to an interface access-group commands are applied. To remove the extended access control list from the statement use the no command. Unique numbers are referred to as port. In this example, we will filter the BGP routes by using extended access-list. Here is the initial configuration of the router: interface Loopback4 ip address! Cisco IOS XR VPLS Configuration Example Router-1 interface TenGigE0/0/0/3.20 l2transport encapsulation dot1q 20 l2vpn bridge group.. Example Cisco ASA Configuration: access-list PROXY-SERVERS extended permit ip host 172.19..3 anyaccess-list PROXY-CLIENTS extended permit tcp 172.19.. 255.255.252. any eq wwwaccess-list PROXY-CLIENTS extended permit tcp 172.19.. 255.255.252. any eq httpswccp web-cache redirect-list PROXY-CLIENTS group-list PROXY-SERVERS password. Examples ¶ # Using merged 2 elements; name hash: 0xbd6c87a7 # access-list global_access line 1 extended permit icmp any any log disable (hitcnt=0) 0xf1efa630 # access-list global_access line 2 extended deny tcp any any eq telnet (hitcnt=0) 0x4a4660f3-name: Merge provided configuration with device configuration cisco.asa.asa_acls. Example of Extended IP Access List. In this example we will create an extended ACL that will deny FTP traffic from network but allow other traffic to go through. Note: FTP uses TCP on port 20 & 21. Define which protocol, source, destination and port are denied: Router(config)# access-list 101 deny tcp .255.255.255 187.100.1.

Outbound Traffic Control Using a Access List - Extended ACL Tagged: acl,access list,cisco diagrams,cisco templates,cisco examples,network diagrams,network templates Updated: 5 years ag This example shows how to create a MAC layer access list named mac_layer that denies traffic from 0000.4700.0001, which is going to 0000.4700.0009, and permits all other traffic: Switch (config)# mac access-list extended mac_layer Switch (config-ext-macl)# deny 0000.4700.0001 0.0.0 0000.4700.0009 0.0.0 protocol-family appletal The Cisco 2950 Ethernet switch has some limited basic QoS functionality that you can (and should) configure to support VoIP. configure terminal ! Access List Example (You identify RTP Audio traffic)ip access-list extended 105 permit udp any any eq 2048 permit udp any any eq 2050 permit udp any any eq 2052 Access List Example (You. Q2: Access List In/Out clarification. I have a clarifying question re: placing an access list into or out of an interface. Let's say for the sake of keeping it basic that I have this topology: PC1—>E0Router1E1<—-PC2 If I want to apply an access list that deny's all packets with source add pc1 to PC2 can I do it two ways 1- Create an access list which is identified by a number, I used 110 as a number of the access list, icmp protocol, and echo service name, as you see below in the first command . You should know that you can use the port number or service name, in the this example i used the service name. the second command permits the packets coming from any network to any network using any protocol, I used.

Access list with multiple object groups - Cisco Communit

I use Microsoft Notepad to edit the access list from the configuration by pasting it into the Telnet/SSH session. Next, Iadd the new access list: Router (config)# access-list 101 permit tcp host192.168.19.137 host eq 15648. Router (config)# access-list 101 permit tcp any gt 0any gt 0 lo Excerpt from Cisco Firewall Video Mentor Example 10-3 shows the configuration command that is entered. # access-list acl_dmz extended permit tcp host host eq.

Reader Tip - Resequence Entries in an ACL - Cisco Communit

  1. Example 1: Create ACL 179 and Define an ACL Rule After the mask has been applied, it permits packets carrying TCP traffic that matches the specified Source IP address, and sends these packets to the specified Destination IP address. config access-list 179 permit tcp 192.168.77. 0.0.0.
  2. access-list demo1 line 3 extended permit tcp 255.255.255. any eq https Notice in the first line of the example above that an ACE is added at line one in the ACL. Notice in the output from the show access-list demo1 command that the new entry is added in the first position in the ACL and the former first entry becomes line number two
  3. Cisco implemented simple access lists first (filtering on destination host addresses, augmented by wildcard masks), but of course they weren't good enough to block (for example) SMTP, so they created extended access lists, which can match on source and destination IP addresses (with wildcards bits on both - these bits allow you to match whole.
  4. Command Access-list (Extended) Use This command is used to create a list that matches packets on a given criteria. While access-lists are most commonly associated with security, there are numerous uses.Extended lists match on source addresses and destination addresses as wel
  5. g ACLs Router (config)# access-list ? <1-99> IP standard access list <100-199> IP extended access list <1100-1199> Extended 48-bit MAC address access list <1300-1999> IP standard access list (expanded range) <200-299> Protocol type-code access list <2000-2699> I P extended access list.

Access-list (Extended) Command on CISCO Router/Switc

14 Cisco Network Diagram Examples ideas | networkStandard, Extended and Named ACL

3 Steps of Cisco Extended ACL Configuration with Packet

  1. access list and access control list are used interchangeably throughout the book. It is unfortunate that the general policy mechanism for Cisco routers is known as an access list. The term access connotes that access lists apply only to the area of security, while in fac
  2. Extended IP access list WVIP 10 permit ip host any 20 permit ip host any (278 matches) SGHQSL1-4506#sh access-lists WVISITOR Extended IP access list WVISITOR 10 permit ip any (2470017 matches) Note: The traffic that does not match the policy uses the default route configured in the core switch
  3. ASA1# show access-list INSIDE-IN access-list INSIDE-IN; 3 elements; name hash: 0xf1656621 access-list INSIDE-IN line 1 extended deny tcp host any eq www (hitcnt=12) 0x410c3b92 access-list INSIDE-IN line 2 extended deny tcp host any eq https (hitcnt=5) 0xefe6d38a access-list INSIDE-IN line 3 extended permit ip any any (hitcnt.

Configuring IP Access Lists - Cisc

Cisco ACL Configuration Examples [cmdref

An example configuration for extended ACL is given below. Note that www is a TCP protocol. access-list 100 deny tcp host host eq www access-list 100 permit ip any any. interface fastEthernet 0/0 ip access-group 100 in. Observe that the command ip access-group 100 in applies the access list to the interface fastethernet 0/0. 3 Karan, no, you are wrong. Your access-list check only network part of route. The right answer is, for example if is variably subnetted, 2 subnets, 2 masks Extended IP access list 101 10 deny ip host host 20 permit ip any an Named IP Access List. This allows standard and extended ACLs to be given names instead of numbers. Named IP Access List Configuration Syntax ip access-list [standard | extended] [name | number] Example of Named IP Access List. Define the ACL: Router(config)#ip access-list extended in_to_out permit tcp host host eq telne Ansible ASA Playbook (asa_config and asa_acl): Cisco ASA access-list Like in my previous post in the new development version 2.2. from Ansible are new IOS and ASA core modules. Here an example of the asa_config and asa_acl module to create and object-group in the first step and create the inside create access-list access-list dmz-access extended permit icmp 192.168.10. 255.255.255. host echo-reply access-list dmz-access extended remark ** DMZ to the Internet ** access-list dmz-access extended remark ** Email server ** access-list dmz-access extended permit tcp host 192.168.10. gt 1023 any eq 25. again assign it to interface

Creating an IP Access List and Applying It to an - Cisc

Cisco Bug: CSCtk13720 - Cisco router crashes when removing an entry from an extended access-list access-list outside_access_in extended permit icmp any any time-exceeded access-list outside_access_in extended permit tcp any host eq pptp access-list outside_access_in extended permit icmp any any echo-reply access-list inside_nat0_outbound extended permit ip 255.255.255. 255.255.255 Below provides examples of both pre and post 8.3 no NAT configurations. Example Details. Local LAN - 192.168../24; Remote LAN - 172.168../24; Traffic is arriving on the inside interface and leaving the outside interface. Pre 8.3. Pre 8.3 a access-list was configured to define the source network and destination network

Cisco ASA Series CLI Configuration Guide, 9

  1. Extended IP access list REMOTE_DESKTOP_DENY 10 deny tcp any eq 3389 host eq 3389 Extended IP access list Stack Exchange Network Stack Exchange network consists of 176 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
  2. For example, let's create another access list to permit SSH traffic from through the ASA. As you can see, both access lists are applied on the same outside interface. I will add a router connected to the ASA's Gi1 interface with an IP address of and enable SSH on that router so we can test
  3. Cisco recommends using auto NAT. This is also bad advice to use Auto NAT because it makes extremly ugly and hard to manage code. *New* NAT Zero+ACL Example: nat (INSIDE) 0 access-list ACL-NONAT access-list ACL-NONAT extended permit ip 192.168.5. 255.255.255. host access-list ACL-NONAT extended permit ip any host 172.16.200.
  4. In real life examples, the goals you try to accomplish will impose the criteria. If you must filter out some specific TCP traffic (e.g. going towards port 80), an extended ACL must be used as the standard one cannot filter on TCP (source IP only)
  5. Cisco CCNA - Extended Access Lists - Configuration
  6. Access Control List Explained with Example

Configure Extended Access Control List Step by Step Guid

  1. Extended Access List - an overview ScienceDirect Topic
  2. 9-3 Extended Access Lists - Free CCNA Study Guid
  3. How to create and configure Extended Access Control Lists
  4. Cisco ASA Access-List - NetworkLessons
  5. Standard access-list example on Cisco Route
  6. Cisco CCNA - Named Access Lists & Configuration
  7. ssh Access-list - Cisco Communit
Cisco and System Security Basics: Lab 3-3: Using ACLs toIPv6 Access Lists on IOS - PacketLife
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