ccna 200 301 syllabus examples for elementary

ccna 200 301 syllabus examples for elementary.There is validation, validation type 1 indicates plaintext validation, and validation type 2 indicates MD5 validation; "auk" indicates the content of the associated validation; ufromFastEthemetO/Ow indicates the interface from which the OSPF message is received.There are two types of authentication for OSPF networks: SimplePasswordAuthentication and MessageDigest Authentication.Authentication) can be divided into link-specific authentication and area-specific authentication. Link-specific authentication is similar to that of RIP and E1GRP.It is only for a particular link. Area-specific authentication is for all routers in the same OSPF area, and in order to participate in OSPF routing, allrouters have to be configured with the same password. In this book, only area-specific authentication for OSPF is introduced, and more authentication knowledge is introduced in the CCNP section.1. simple plaintext authentication The disadvantage of simple plaintext authentication is that it is vulnerable to attack and anyone with a line analyzer can steal the password from the network. On router Bay 1, use the followingon Router Bay 1 to initiate simple plaintext authentication.R1(config)#int sl/1 R1(config-if)#ip ospf authentication-key cisco configures R1 (config-if)#int fa0/0 on all interfaces participating in the OSPF process to use plaintext passwords.R1(config~if)#ip ospf authentication-key cisco R1(config-if)#router ospf 1 R1(config-router)#area0 authentication Statement. Use plaintext authentication.