Configure some large networks, because of the work done a lot, it is inevitable that there will be configuration errors, this in-depth summary of the router common configuration errors, so as not to waste unnecessary time setting.
One, the reallocation of the route ignores filtering, when the router reallocation route
Some of the comrades may not be very clear about the DHCP configuration of Cisco routers, and most people do not know about the computer, so, the customer asked us to allow any computer to access the LAN to access the Internet, so we had to configure DHCP 2600. 2600 router we identify as: Cisco enters global mode.
Cisco (config) # ip dhcp pool server "server" is the DHCP service Identification name, not a c
-updown:lineprotocoloninterfacevlan1,changedstateto up Router#router#ping 192.168.1.2Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:.!!! Success rate is percent (3/5), round-trip Min/avg/max = 0/0/1 msThe interface can be viewed in the event of an errorRouter#showinterfacesf0/0fastethernet0/0isup,lineprotocolisup (connected) hardwareislance,addressis0010.
Product introduction
Cisco SDM is an intuitive and web-based device management tool for managing routers based on Cisco ios® software. Cisco SDM simplifies the router and security configuration process through the Smart Wizard, and with these wizards for customers and Cisco Partners, you can quickly and easily deploy, configure, and monitor the Cisco systems® router
Many people do not quite understand the meaning of configuring IPsec statements. The following describes the problem in detail. With the increasing popularity of Internet, the low cost of Internet access has prompted more and more enterprises to use VPN to achieve remote connection. Compared with traditional WAN connections such as leased lines, frame relay, and ATM, VPN not only has much lower cost, but also has no less security. Today we will mainly introduce how to use a
Simple Local authentication:(config) #username admin password Cisco // Establish user admin password for Cisco Local User (default permission level is 1)(config) #line vty 0 4 (config-line) #login local / /call on- premises authentication / / above method configuration, the default entry is User mode ">" After Telnet, An en password is required to enter the "#" password Cisco // to establish a user with a permission level of 15 admin/
TFTP server-side-------------------Router192.168.1.1 192.168.1.2 f0/0(1) First set the IP address of the TFTP server to feed 192.168.1.1(2) Routing configurationRouter〉enableRouter #Router #configure TerminalRouter (config) #Router (config) #interface f0/0Router (config-if) #ip address 192.168.1.2 255.255.255.0! Set the interface IP addressRouter (config-if) #no shutdown! Open InterfaceRouter (config-if) #0
You should have heard of DOS attacks more or less. The general principle is that the host initiating the attack sends a large amount of information to the attacked host to be processed, until the affected host cannot process other normal access requests, if more than one source address of the host initiating the attack is DDOS (distributed denial of service attack ), if the hardware configuration of the affected host is good enough, we can stick to it
IPOEOA
The networking diagram of IPOEOA is similar to that of Figure 6. The configuration is as follows:
Client:[Quidway]discur#sysnameQuidway#interfaceEthernet1/0ipaddress192.168.0.1255.255.255.0#interfaceAtm2/0adslstandardgdmtpvc3/99 mapbridgeVirtual-Ethernet0#interfaceVirtual-Ethernet0ipaddress202.132.0.2255.255.255.0natoutbound3000#interfaceNULL0#aclnumber3000rule0permitip#iproute-static0.0.0.00.0.0.0202.132.0.1prefere
Cisco router register configuration objective: Register configuration is used to change the router startup process. The Start bit consists of four hexadecimal registers. The value range of 0 xABCD www.2cto.com ranges from 0x0 to 0 xFFFF 0x2102: Industrial default value 0x2142: starts from FLASH, but do not use the
1. This method is suitable for the cat comes with the dialing function, 4G wireless cat and other devices, the other steps and the usual configuration router step is no different, only when the WAN port configuration changes. 2. First IP-DHCP client Click the plus sign to add, select the WAN port is the number of ports, and then determine. Wait a few seconds for
1.openwrt:http://downloads.openwrt.org.cn/pandorabox/xiaomi-mini-r1cm/Under the version is r583,testing inside of the r327 software source address does not exist, is estimated to be temporarily removed. If you can't opkg with r327, replace the source address withHttp://downloads.openwrt.org.cn/PandoraBox/ralink/mt7620/packages2. SCP passes the file to the Router tmp directory: SCP file name [email protected]:/tmp3. mtd-r Write filename firmwareAfter t
NAT technology is a commonly used technology in the vro configuration process. How do I configure and implement its functions? How does it work? The following article will give you a detailed answer.
NAT (Network Address Translation) is the Translation of Network IP addresses. NAT is designed to address the increasing shortage of IP addresses. It maps multiple internal addresses to a few or even one public IP address. In this way, computers in our Int
4.7.24 show ip ospf aseDisplay OSPF external route information
Show ip ospf ase
Command mode]
Privileged user mode
User Guide]
Based on the command output information, you can view the external routing introduced by OSPF.
> Example]
QuidWay (config) # show ip ospf aseDestination Address generation vro next hop address length serial number type cost100.1.1.1 1.1.1.1 1.1.1.1 125 36 80000001 1 44.7.25 show ip ospf cumulativeDisplays OSPF statistics.
Show ip ospf cumulative
Command mode]Privileged u
Vro configuration and management is the first step for network management to work on vrouters. This simple basic work requires the support of vro functions in many cases to achieve security and convenience. Therefore, for a network management system, You must select a product with sufficient functions when purchasing a router to configure it as needed. If the functions of a
I. Networking requirements:
As an egress NAT router, MSR limits the maximum number of NAT sessions on the internal host 192.168.0.3 and 192.168.0.2 by default.
Device List: One MSR series router
Ii. Networking diagram:
3. configuration steps:
MSR Configuration
#
// Enable connection restriction, which must be configu
Today, we will introduce the differences between the new setting commands of Huawei routers and those of the old ones, so that you can refer to those who use Huawei routers for the first time. I. Level 1: In the past, the USER command level ing function only used level 0, 1, and 15. Basically, most of the commands were level 15, after entering the privileged mode, you can use all the commands of the system.After logging on, the user enters the normal user mode:Quidway> enable 15 enters the privi
Telnet login authentication Mode has Aaa,password,none, here we use AAA and password two authentication mode for experiment, R2 authentication mode for PASSWORD,R3 authentication mode is AAA, finally through Telnet login verification effect.Step One: Configure each interface IP address, configure RIP protocol, so that each router can communicate with each otherR1Interface g0/0/0IP Add 12.0.0.2 8Interface G0/0/1IP Add 23.0.0.2 8QuitRIP//Configure RIP p
First of all, the configuration environment plug-in for this project, because it is the mobile side, so a part of the consideration is the mobile side:Routing Vue-router RoutingRouting is a very important thing in the Vue project, and when it's built, it's a good choice.Ui Framework Vux
The UI framework integrates the Vux
Vux Mobile UI Component library developed based on Weui and Vue (2.x), m
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