cisco ccna course

cisco ccna course

Upgrade the standby engine, not to mention here, the method is the same as above. Note that to change 0X2102, you need to configure SS0 mode. There are also changes to the startup project. license udi pid CISC01941/K9 sn FGL1721109D interface Vlan20 The second step is to fill in the PAK number. It is on a piece of white paper that you get and the white one is the PAK number. Note that DHCP is configured above. This can be configured on the router or on the core switch. Pay attention to the current IOS version. This is 15.3. It is basically new. The router comes with the IOS default BUG comparison maybe more. Failover unit Primary failover key cisco The above configuration is well understood. The network segment is grabbed and then restricted. Then applied to the VLAN interface below. In the actual project, it’s often encountered ,such configuration requirements. failover ip access-group 100 in The specific method is as follows: TC-core#show module failover interface ip failover 192.168.1.1 255.255.255.0 standby 192.168.1.2 ip address 192.168.20.1 255.255.255.0 boot-end-marker Activate IP BASE version. When you activate, under normal circumstances. There will be no problems but you may also encounter the following problems. That's the case of licensing errors. For Cisco, voice and security licenses often go wrong. However,the routing and switching are very few possibilities for error. But this time,cisco ccna course, there are 6 licenses and four of them have been activated. 4507B#sh run | in boot The router is multi-service: support data, voice, routing, and software firewall, nat various interface types. Here I will introduce you to a personal example I have encountered to understand the firewall. I went to an exchange in Shanghai, China. Here I realized what is called a firewall. First enter the exchange, the staff inside need to actively contact the security, confirm the business, and determine the identity of the entry personnel where the identity is applied in advance and verified. Then the entry personnel need to put their ID card in the security office for a permit. When you come out, you can use the entrance permit to change back to the ID card. Then, after you have the entry permit that you can enter the park but there are many buildings in the park. When I want to enter the 11th building, I need to check the security. After the security check, I got the first the construction permit for Building No. 11 can only enter Building No. 11. And the construction permit is one-off. When you walk out of Building 11, your construction permit will be invalid. When you come in for the second time, you have to go through the security check and change the construction permit and all of this is not in person. Security inspections carried out out of the park. It can be seen how strict the security of this data center.