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DHCP DISCOVERDHCP OFFERDHCP REQUESTDHCP ACK > Aknowledge (confirmation)DHCP NAK > NotAknowledge clinet Net cannot be assignedDHCP RELEASE > not used any more when machine shutdown for example
DHCP RELEASEDHCP will result in the release of an IP address if the client fails to renew the IP address before the lease expiry
[server]>dhcp enable[server]>interface GigabitEthernet0/0/0[interface]>ip address 10.1.1.1 24[interface]>dhcp select interfacechanging other params[interface]>dhcp select server dns-list 10.1.1.2[interface]>dhcp server excluded-ip-address 10.1.1.2[interface]>dhcp server lease day 3 (1 by default)
[server]>display ip poo;l interface GigabitEthernet0/0/0
[server]>dhcp enable[server]>ip pool pool2[pool]>network 10.2.2.0 mask 24[pool]>gateway-list 10.2.2.1[pool]>lease day 1[pool]>quit[server]>interface GigabitEthernet0/0/1[interface]>ip address 10.2.2.1 24[interface]>dhcp select globalvalidation[server]>display ip pool
Ftp Client < VRP / Configuration File > Ftp serverFtp Client < Log File / Ftp serverFTp provides an effective means for backup and retrieval of important files
control connection is used to send a command from the client to the server > usees the port 21data connection used to send data , file between the client and the server usees TCP port 20
[ftp server]>ftp server enable[ftp server]>set default ftp-directory flash:/
[server]> aaa (server mode of the system view)[server-aaa]>local-user userName password cipher passwd[server-aaa]>local-user userName ftp-directory flash:/ (working dir for the user)optional configurations[server-aaa]>local-user userName across-limit 200 (200 can login at same time using this userName)[server-aaa]>local-user userName idle-timeout 0 0[server-aaa]>local-user userName privilege level 3there are 16 levls 0-15 > above 3 have the same meaning
interpret keystrokes and store them into an IP package and then send them to the server