Cisco interface is based on the interface type and interface number naming. , 7,000 and 7,500 series router slot numbers have been added. All interfaces and slots are an index of zero. Models 2501, the first Ethernet port on the router will be identified to the Ethernet0. 7,000 with the fourth serial port serial card in slot 2 Serial2/3.
* For the remainder of this section, it assumes that the reader has passed the "Configure Terminal" Terminal privileged EXEC prompt to enter the router configuration mode.
Set a Hostname:
Configure the router in the first order of business is to choose a router host name. This name does not use router itself and is perfect for human consumption. You set the host name is replaced in the "router" and can distinguish which router is connected, and then use telnetting across several routers. This line inside the first 20 rows appear in the configuration file, and can be differentiated from another router configuration has been saved. This command takes the form
hostname <name>
Establishing Enable Password Protection:
Router before connecting to your network, it is also a good idea to set the enable password. This password is used to gain privileged access to the router, so it shouldn't be obvious passwords. The format for this command is shown below:
Enable password <password>
This password may include any of the up to 80 alphanumeric characters, including spaces, but must not start with a number or a space. The password is stored in the configuration file is not encrypted (plain text) formats. Obviously, it is best to save it before with an encrypted password. To do this, use:
Service password-encryption
This will cause all of the codes, the system before being stored in the saved configuration Cisco proprietary encryption algorithm used for encryption.
Note: there is no way to recover a lost encrypted password.
Configure Console and Network Access:
Means, the device installation is the only console. When in the field, it's programs, maintained through a router instead of a Telnet connection to which you want to configure each router to dial-up or monitoring system is more convenient. To do this, you must configure virtual TTY (vtys). In General, should, however configured with 5 vtys, the router will support up to 100. Each timeout should be given, in order to avoid all the vtys are in use. If all the vtys are in used, further connection attempts will result in "connection refused". It may be a good idea to force the user to enter a password before you can log on to the router through a vty as well. An example of this configuration is shown.
line vty 0 4
exec-timeout 30 0
login
password steamboat
This will create 5 vtys numbered 0 through 4. Each vty timeout time of four minutes and 30 seconds. The vtys need to enter a password to log in. The password is "hot pot". Note: If the encrypted passwords are enabled, this password is encrypted before being stored in the router configuration. May enable vtys is the minimum number of 5.
Usually when you don't want console access requires a password, but you want to specify a timeout period.
line con 0
exec-timeout 15 0
For a full description of how each vty may be configured, refer to chapter 4 of the router configuration guide.
Configuring the CIP card and the virtual interfaces:
CIP cards appear on the router as a controller rather than a standard interface. T1 channels may be defined, modified, or deleted without any external configuration card. CSU cycle may boot and run from the software release and test patterns in these loops from the router. Full management advantages are well known to anyone who has any time at all to perform network operations technician jobs. Reported power outages to the carrier's ability to quickly determine when CSU State, trying to quickly fix and get a complete diagnosis issues and valuable. During the initial report can provide them with more information that often can greatly speed up, diagnose and repair process.
T3 controller, because it is built on a VIP2 technologies introduced into the third level is specified. Rather than simply slot/Port, it does not introduce a port adapter. Because only one CT3IP per card, ports, and port adapter will always be zero. In slot 2 of the interface will be identified as 2/0/0. After T1 channels (numbered by specifying a 1 28 to meet belcore) interface identifier of the interface are designated by a colon and a channel number. In the previous example, the 17th 2/0/0:17 T1 channel.
The interface configuration of the T3 is the first step. T3 framework, clock source and cable distances (this is used to determine) the settings that you want. Default is 224 feet cable length. This should be acceptable for most applications. Our website supports frame type cbit and the m23. It is possible to configure the router automatically detects frame but in many cases, automatic may cause problems in the future so it is best to use this only if you're not sure is using frames. Once you have determined the framework, it can then set up a static router configuration.
For most muxed T3s, the framing type will be m23. cbit is used, for example, in a clear channel T3 into an ATM network.
controller t3 0/0/0
framing m23
clock source line
cablelength 224
controller t3 0/0/0
t1 1 timeslots 1-24 speed 64
t1 1 clock source line
t1 1 framing esf
t1 1 linecone b8zs
After the T1 configuration, the router will create a virtual serial interface. Until the T1 has been created and determined in the same manner as described above, this interface does not appear. For example, for refference first T1 serial interface, it will be identified as serial 0/0/0:1. This interface can be used as any other serial interface beconfigured.
Levels starting from the interface loopback test. T3 also may be back from the controller configuration cycles. It is important to note the configuration from the controller could not possibly ring T1.
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