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Tuesday, April 27, 2010

Question 54

When doing an auto-install over frame-relay what considerations need to be made?

1 comments:

Packets Analyzed said...

AutoInstall over a Frame Relay requirements

1. Serial connection to the network and router powered on.
2. AutoInstall process brings up the interface and learns the DLCI.
3. A frame map is created.
4. The new router sends a BOOTP request to the remote end.
5. BOOTP server replies to the request with an IP address. The new router now has an IP address.
6. The new router broadcasts TFTP request looking for a configuration file. The remote router has an IP helper address to forward this request to a TFTP server.
7. Configuration file is sent by the TFTP server and the new router loads the conifguration.
8. This completes the AutoInstall and the new router is up and running.

Example: R10 - is the new router (R10 is connected to R20 over frame-relay. R20 has a TFTP server off its fastethernet 0/1 interface. TFTP server ip address is 10.0.0.100/24.

Create configuration file and save it as r10-config on the TFTP server

hostname r10
!
enable secret cisco
!
interface fastethernet0/1
ip address 10.0.1.10 255.255.255.0
no shutdown
!
interface Serial0/1
ip address 192.168.1.10 255.255.255.0
encapsulation frame-relay
no fair-queue
frame-relay map ip 192.168.1.20 102 broadcast
no shutdown
!
router rip
version 2
network 192.168.0.0
network 10.0.0.0
no auto-summary
!
line vty 0 4
password cisco
login
!
end

Create a network configuration file and save it on the

TFTP server as network-config


ip host r10 192.168.1.10


R20
__

hostname r20
!
enable secret cisco
!
interface Fastethernet0/1
ip address 10.0.0.1 255.255.255.0
!
interface Serial0
ip address 192.168.1.20 255.255.255.0
ip helper-address 10.0.0.100
encapsulation frame-relay
no fair-queue
frame-relay map ip 192.168.1.10 201 broadcast
!
router rip
version 2
network 192.168.0.0
network 10.0.0.0
no auto-summary
!
line vty 0 4
password cisco
!
end

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