cisco 2811 ios

The emergence of NAT technology stems from the requirements for private network security and the situation that IPv4 addresses are insufficient. Cisco IOS supports the following common NAT technologies. Today, I found that my colleagues in the company do not understand the implementation of Cisco NAT, which leads to configuration problems. Here we will briefly ex

command after the prompt:===================================================================ROMMON 1 >ip_address = Router IP addressROMMON 2 >ip_subnet_mask = Router Subnet maskROMMON 3 >defaut_gateway = Default gateway addressROMMON 4 >tftp_server = TFTP server IP addressROMMON 5 >tftp_file = iOS file nameROMMON 6 >tftpdnld===================================================================Rommon 1 >ip_address=192.168.0.1 (is the IP address of the ro

CISCO 3750 vswitch configuration export and IOS upgrade, 3750ios Download the tftpd32 Tool After installation 1. Set the file storage path 2. Select the IP address used to enable TFTP locally 1. Export Configuration Ensure that the IP address of the Local Machine and the switch are in the same CIDR Block and can be pinged. Use CRT and other tools to remotely connect to the vswitch. View files stored in a v

Router> Router>enable Router#configure Terminal Router (config) #archive Router (config-archive) #path Backup Destination address/Backup build file name Router (config-archive) #write-memory Example: Router (config-archive) #path flash:/ Backup destination path/$h-config Router (config-archive) #path ftp://IP address/$h-config Router (config-archive) #write-memory Where: The URL path of ' $h ' is automatically replaced with the hostname. "$h-config" is the base file name, and the parameters are

The next step is to upgrade iOS, where a good TFTP server software is used.http://tftpd32.jounin.net/How to use it I won't say, go downFirst to download to the corresponding iOS package, I use the official tar package here, so the process is a little different# Debug The local tftp SERVER, and put iOS bag together enable# dir First look at the remaining space eno

Today, I upgraded a Cisco 3560 for my colleagues, as follows: 1, configure the environment will be replaced by the new iOS uploaded to the switch, to help tools, there are many tools, we can choose, I use the little man Tang in the flying predecessors share 3CDaemon. Set 3CDaemon FTP directory for d:\, put iOS in D:\, and click Start to run the software 2, u

CISCO ########################### #CONFIG ##########IPSEC * * * Test!Crypto ISAKMP policy 1ENCR 3DESAuthentication Pre-shareGroup 2Crypto ISAKMP key [email protected] address 202.1.1.1!Crypto IPSec Transform-set set Esp-3des Esp-sha-hmacMode transport!Crypto map S 1 ipsec-isakmpSet Peer 202.1.1.1Set Transform-set SetMatch Address 100!!Interface Loopback0IP address 2.2.2.2 255.255.255.255!Interface Loopback1IP address 192.168.2.1 255.255.255.255!Interf

Cisco IOS related OperationsOne , configuration save, erase, device restart1. Differentiate Startup-config and running-config and save configurationStartup-config: Stored in NVRAM (nonvolatile storage), that is, reboot configuration unchangedRunning-config: Saved in RAM (volatile storage), that is, restart configuration disappearsCopy running-config Startup-config: Save the existing configuration in NVRAMWr

Rommon 1>　　　Rommon 2>ip_address=192.168.2.1------The first LAN port with the smallest number. Configure IP　　Rommon 3>ip_subnet_mask=255.255.255.0--------Mask　　Rommon 4>default_gateway=192.168.2.2----------/Configure GatewayRommon 5>tftp_server=192.168.2.2Rommon 6>tftp_file=c2800nm###############.bin//ios NameRommon 7 >sync//Save Configuration　　Rommon 7>tftpdnld//uploadSync Save command after the device restart configuration is not lost, but after this

This video is the second part of the ninth episode of the Network part of the Linux system engineer training course. The main content is IP interconnection between Cisco switches and routers, configuration Backup recovery, and IOS Backup Recovery and upgrade of switches. At work, I found that many Linux O M personnel encounter bottlenecks due to lack of basic network knowledge, and it is still a common p