Practical application of encryption in vro Configuration

There are still many things worth learning about vro configuration. Here we mainly introduce the knowledge about "enable encryption" in vro configuration. The enable secret is encrypted in the I0S vro configuration file to prevent accidental leaks (line 1 ).

The enable password is displayed in plaintext in the vro configuration file (9th rows ). Both "encrypted enable" and "enable password" have a common purpose: Enable the operator to configure the router to the I0S privileged mode. The specific situation will be discussed in chapter 3rd. Encryption enable password overwrites the Enable password; in other words, it takes precedence over the latter. Both passwords must be entered because the old version of I0S does not support the "encryption enabled" password. In the future, if you load the configuration of this vro into a vro running the old version of 10 s, you can get a "encrypted activation" password.

The virtual terminal (VTY) password is used to log on to the vrotelnet (10th rows) after a Telnet session with the same vrotelnet is established ). Now, the router configuration dialog will ask what network protocols we want to run on the Dallas router. The answer is simple. Select Yes or No. According to our plan, the three protocols we want to route include IP, IPX, and AppleTalk. This part of man-machine interaction is displayed.

SNMP stands for "Simple Network Management Protocol", although it is not a real Network Protocol. In essence, SNMP is an IP application used to remotely manage network devices. On this vro, we do not plan to run SNMP (1st rows ).

LAT is short for "LocaI AreaTransport", which is a non-routing protocol. The LAT must be bridging because it does not use layer-4 addressing. LAT is used in terminal servers and print servers in the DEC (Digital Equipment Company) environment. We do not plan to run I 'AT (row 2nd ).

AppleTalk is used for a network composed of Apple Macintosh hosts. In this example, we are going to run it. Therefore, you need to answer Yes (3rd rows) here ). In the AppleTalk network, the network can be a part of multiple zones. However, since each of our Networks is only in one zone, do not select "multi-zone network" (Multizone Networks). In this case, answer No (row 4th ). Once AppleTalk is enabled, the RTMP routing protocol is automatically used on the interface. DECnet is used in the DEC inter-network environment. This network environment often contains host systems from the dec vax family. We do not plan to run DECnet (row 5th ).

Plan to run the IP address for the inter-network, so the answer to this question is Yes (row 6th ). I0S does not assign a default routing protocol to the IP address. We must select one. In this vro configuration dialog, we will only ask if we are willing to use Cisco's "Internal Gateway Routing Protocol" (IGRP) and RIP, if you want to use any other IP address Routing Protocol except IGRP and RIP, you cannot use this "system configuration dialog" to start it.