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policy in Router 2, specifying host and port7 The ACL takes effect under the port of the Router 2 Xia Lian serverNetwork topology1 Configuring Router 1 single-arm routing, establishing sub-interfaces and configuring IP addresses, etc.2 Configuring the Switch's VLAN and port type3 Configuring the IP address of the PC4 Configuring the interface address for Router 25 Configure static routes to communicate properly between networks6 Configure the ACL policy on Router 2 to allow PC1 to access the se

can make corresponding policies for different VLANs. Data centers also need to use stateful firewall security solutions to protect data and provide gigabit performance at the lowest possible cost. 6503/6506/6509 High-end firewalls can maximize the efficiency of capital investment by providing the best performance-price ratios in the firewall, allowing customers to forgo the expensive firewall products that they used to have to buy additional firewall load-balancing devices.

(Forbidden) Protocol Source IP address/network segment Anti-mask destination IP address/network segment anti-mask eq Port ****** Prohibit a network segment (source network segment) under a protocol (or a port) access to the B segment (destination network segment) router (config) #access-list table number permit ip any Any note: Extended ACLs By default all networks are also set to prohibit, so other network segments should be released. ro

value of the temporary self-reverse Access Table item. The default value is 300 s, you can modify the global timeout value through ip reflexive-list timeout in global mode or set the timeout value in the corresponding application line, which takes precedence over the global setting value ). The basic format of the anti-list is: Ip access-list extended xxx Permit

: IP access-list Extended xxx permit protocol source destination reflect name [time-out seconds] IP access-list Extended yyy Evaluate name (this keyword creates an open table entry that temporarily internally leads to an external return flow, the two red places must be the same, meaning I don't want to repeat it) is finally enabled on the interface, which is similar to the application rules for th

In the BGP Route Selection protocol, you can filter the BGP Route Selection and update. To do this, you need to use the prefix list. I. prefix list features: (1) it can be incrementally modified. We know that we cannot delete an entry in the general access control list, if you want to delete an entry in the list, you c

What is the difference between an acl and a vacl between a cisco vlan, its implementation method is to apply the ACL directly to the virtual port of the VLAN, which is the same as the ACL implementation method applied to the physical port. The VLAN access control (VACL), also known as the VLAN access ing table, is implemented in a different way than the former. It is applied to all communication streams in a VLAN. It supports Filtering Based on ETHERT

-If) # ex R3 (config) # router rip R3 (config-router) # network 3.3.3.0 R3 (config-router) # network 192.168.10.0 R3 (config-router) # network 192.168.20.0 R3 (config-router) # network 192.168.30.0 R3 (config-router) # network 192.168.34.0 R3 (config) # access-List 1 permit host 12.0.0.2 R3 (config) # Line vty 0 4 R3 (config-line) # access-Class 1 in R3 (config-line) # password ABC R3 (config-line) # Login Check whether R5 can telnet? 650) This. widt

Application (ACL) of the access control list of cisco router Integrated Experiment ii ip Address Configuration on each device, steps ======================================================== ========================================================== ======================================= Configure route R1: (config) # ip route 0.0.0.0 0.0.0.0 192.168.1.254 route www.2cto.com R2: (config) # ip route 0.0.0.0

in the subnet to access the test serverDeny host access to test server in 10.10.2.0 subnetAdd commands on the experimental routerAccess-list 1 Permit 10.10.1.10 0.0.0.255Interface f0/0IP Access-group 1 in2. Extending ACLSAllow network segment one and network segment two ping pass test serverTelnet service that allows network segment one but does not allow network segment two access to the internal networkAdd commands on the experimental routerAccess-

PC2Network 192.168.4.0 255.255.255.0Default-router 192.168.4.254Interface fastethernet0/0IP address 192.168.3.2 255.255.255.0Duplex AutoSpeed auto!Interface FASTETHERNET0/1IP address 192.168.4.254 255.255.255.0Duplex AutoSpeed auto!Router RIPVersion 2Network 192.168.3.0Network 192.168.4.0No auto-summaryExperiment Summary:Implementation premise: All-network communicationThe Knowledge points used:1.route RIP Dynamic routing2. Single-arm routing, trunk link3.ip DHCP4. Extending the Access Control

add the Allow/disable all entries650) this.width=650; "style=" Float:none; "title=" 5.png "src=" http://s3.51cto.com/wyfs02/M01/72/33/ Wkiol1xeqx6jkitpaaaee1t2neu700.jpg "alt=" Wkiol1xeqx6jkitpaaaee1t2neu700.jpg "/>6. Enter the router's inlet, using this ACL650) this.width=650; "style=" Float:none; "title=" 6.png "src=" http://s3.51cto.com/wyfs02/M01/72/33/ Wkiol1xeqkqtjmpoaabb4fvzpfy102.jpg "alt=" Wkiol1xeqkqtjmpoaabb4fvzpfy102.jpg "/>7. Test PC and server communication650) this.width=650; "st

The computers in the 172.16.4.0/24 network segment are servers, and we protect these servers from the virus attacks from the 172.16.3.0 network segment via reverse ACL settings.Configuration instance: Prohibit virus from 172.16.3.0/24 this network segment to 172.16.4.0/24 this server network segment.Access-list Permit TCP 172.16.3.0 0.0.0.255 172.16.4.0 0.0.0.255 established Cisco Simulator defines ACL101,