consists of the word Cisco, the value of the startup bit, and the router type or the name of the processor. For example, the boot field on one 4500 is set to 3, and the default boot file name is cisco3-4500.
Take the MC3819 (CPU model, mostly Motorola) router startup sequence as an example, the following is the four stages of startup:
1. System Bootstrap
2. S
For vrouters of different manufacturers, because of their different implementation methods, there is a certain degree of configuration. Take the vrouters of Cisco and Intel as an example.
DDN connection (Static)
Intel 9100 settings:
Basic
WAN1: Leased Line PPP
WAN2: Unused
Next
Bandrate (bps): 64 K based on the user's actual situation
Link Name: Test-Link1 user d
Many network administrators ignore security settings when they first use a Cisco router. This article describes how to configure network security when using a Cisco router.
1. Security Configuration of the "Access Control" of the vro
1. strictly control the administrator who can access the vro. Record Filing is required for any maintenance.
2. do not access the v
192.168.61.128 as the remote server IP address of GNS3, perhaps everyone is more curious about the configuration of the address there is no need to pay attention to the place, the answer is there, as long as the IP address to the IOU virtual machine IP address.In fact, this place is currently reserved for IOU settings. You can simply think that GNS3 can not only use the local dynamips as iOS running server, it can also designate a remote UNIX virtual
"Connection refused by remote host" still appears in telnet host 1015, and an asterisk appears in front of tty. In this case, "clear line tty 68" is required"
Terminal Server Configuration:
The asynchronous port of the terminal server is connected to the console port of the test router using a Cisco flat cable.Interface loopback0Ip address 1.1.1.1 255.255.255.255ExitaLine 1 16No exec Transport input all Exi
The port Mapping method enables access to specific port services from the Internet to the local area network internal machines. For example, the machine you are using is in a LAN connected to the Internet, all the services you open on the machine (such as FTP), by default, the outside world can not access. This is because your IP is the LAN internal IP, and the outside can access only the server you are connected to the IP, because the entire LAN on t
In a Cisco switch, how does one configure QOS speed limit? How to restrict BT download? This blog will use detailed examples for your explanation.
Instance 1: QOS speed limit problem on CISCO switches
It is used to control the bandwidth of a leased line user on a vswitch. The vswitch is usually at 10/100/1000 or three rates. QOS is required for other rates. You can also limit some ports, policy to restrict
In this section we'll do a HSRP configuration to understand the issue better. To does this we'll use the below the topology [t ' PLD]. At the end ofthis article, you'll find the GNS3 Configuration Lab of this lesson.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/73/AB/wKiom1YDmTbjLqBUAADHgMkUhS8598.jpg "title=" Hsrp1.png "alt=" Wkiom1ydmtbjlqbuaadhgmkuhs8598.jpg "/> for the left side of topolog
Whether it's on a Cisco router or a network device such as a Cisco switch, the standard ACL access control list is always unable to match both the traffic source address and the destination address, nor does it meet the requirements of the "granular" control of the current network world, such as: A service function that allows access to a server, However, pinging the server is not allowed. In this case, an
Cisco Network Tutorial: vro register configuration objective: Register configuration is used to change the vro startup process. The Start bit consists of four hexadecimal registers www.2cto.com format: 0 xABCD value range from 0x0 to 0 xFFFF 0x2102: Industrial default value 0x2142: Start from FLASH, but do not use the configu
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 configurati
Cisco router configuration manual Virtual LAN (VLAN) routing 1. The main network technology we currently use when constructing an enterprise network is generally based on exchange and virtual networks. The exchange technology changes shared media to exclusive media, greatly improving the network speed. The Virtual Network Technology breaks the restrictions of the geographical environment. without changing t
There are many VPN products on the Cisco ASA Web VPN configuration market and their technologies are different. For example, in the traditional IPSec VPN, SSL allows the company to achieve more remote users to access the VPN in different locations, this service enables more network resources to be accessed and has low requirements on client devices, reducing the
want to initialize the switch, you need to enter the Privileged EXEC mode. Enter setup in the command prompt symbol to start the initialization operation.The Privileged EXEC mode is introduced just now. In this case, we need to talk about several modes of machine change. Different modes can execute different operation commands. First, we need to talk about two basic modes.For the sake of security, CISCO divides an operation session into two different
Cisco 3750 switch stack configuration points 3750 stack is a real stack, the Catalyst 3550 series uses StackWise technology, it is an innovative stack architecture, A 32 Gbps stack interconnection is provided to connect up to nine switches and integrate them into a unified, logical, and optimized device for convergence, in this way, customers can deploy voice, video, and data applications with greater confi
, dynamic address translation, and multiplexing dynamic address translation. The following example uses a Cisco router.1. Static address translationStatic address translation performs one-to-one conversion between the internal local address and the internal legal address, and specifies the legal address to which the conversion is required. If there are WWW servers or FTP servers in the internal network that
whether you have loaded an IPSec IOS image that supports SSH.
In our example, we will use the Cisco IOS command. Run the following command:Router> Show flashThis command displays the name of the loaded IOS image. You can use the result to compare the list of supported features of your supplier.After you verify that your device supports SSH, make sure that the device has a host name and a correctly configur
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4. Send log information to a telnet sessionStep 1: configure a host inside the PIX to allow Telnet to the PIXA. Enter the following command:Telnet ip_address [subnet_mask] [if_name]For example, if a host has the IP address 192.168.1.2, the command is:Telnet 192.168.1.2 255.255.255.255B. Set the idle time for a telnet session. The default value is 5 minutes. The recommended value is 15 minutes.Telnet timeout 15Step 2: Start a telnet sessionStep 3: p
In order to manage a network, the network grasping the packet Analyzer is essential, but now is no longer the hub era, grab bag is not so easy, but there is always a way to mirror the port, the other port data copy to the port you specify, so you can grab the bag. Today is not about grabbing bags, It is mainly about how to configure the Cisco switch mirroring port to prepare for the grab package.
Connect the switch with the control line, turn on Hype
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