c3560

Configuring Backup and Recovery for Cisco 3560 using a TFTP serverSwitch#copy running-config TFTP:Address or name of remote host []? 192.168.166.236Destination filename [switch-confg]?To ensure that the switch and TFTP server can be connected between the line.Restore words using similar commandsSwitch#copy Tftp:running-configAddress or name of remote host []? 192.168.166.236Source filename []? Switch-confgThis will save the configuration to Startup-config and will use the restored configuration

I. Working principle: A. To determine the MAC address of an illegal access in a network based on a DHCP snooping or manual form of MAC address and IP address binding table B. At the same time, to prevent malicious ARP spoofing, you can also limit the ARP request packets of the interface ---Test found that ARP requests and replies for untrusted ports (including unreasonable ARP) are discarded, so it is not necessary to make a speed limit on a untrusted port (no manual modification of the DHCP

I. Working principle: A. Determine the illegal access MAC address in the network based on the DHCP Snooping or the manually formed MAC address and IP Address binding table. B. to prevent malicious ARP spoofing, the arp REQUEST packets of the interface can be limited. --- Tests show that arp requests and replies (including unreasonable arp) to untrusted ports are discarded, therefore, it is not necessary to set the speed limit on untrusted ports (no manual modification to the DHCP binding table o

routerInformational 6 An informational event occurred on the Log_info routerDebugging 7 Log_debug output from the DEBUG commandConfiguration on the switchC3560#config TC3560 (config) #logging onC3560 (config) #logging the IP address of the 10.86.20.10//log serverC3560 (config) #logging facility local0//facility identityC3560 (config) #logging trap 3 (log log)//logging LevelC3560 (config) #logging source-interface G0/3//Source IP address for log emitC3560 (config) #service timestamps debug datet

/16043LK3-0.png "style =" float: none; "title =" 2013-11-23_151432.png "alt =" 214857105.png"/> 2. Operation on core switch C3560-24PS) Switch> en Switch # conf Switch # configure Starting ing from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. 1) No device named here. Enable the telnet user password. Switch (config) # line vty Switch (config) # line vty 0 4 Switch (config-line) # login % Login d

Gigabitethernet0/3410135 GIGABITETHERNET0/3510136 GIGABITETHERNET0/3610137 GIGABITETHERNET0/3710138 GIGABITETHERNET0/3810139 GIGABITETHERNET0/3910140 GIGABITETHERNET0/4010141 GIGABITETHERNET0/4110142 GIGABITETHERNET0/4210143 GIGABITETHERNET0/4310144 GIGABITETHERNET0/4410145 GIGABITETHERNET0/4510146 GIGABITETHERNET0/4610147 GIGABITETHERNET0/4710148 GIGABITETHERNET0/4810149 GIGABITETHERNET0/4910150 gigabitethernet0/5012001 Null012002 FastEthernet03. C3560