Cisco TCL Ping script

TCL scripting is a useful tool during the lab and it be use to perform connectivity test by creating a simple ping script.

Go into the TCL shell by issuing the command

tclsh

Script

R1(tcl)#foreach address {
+>(tcl)#192.168.1.1
+>(tcl)#192.168.2.2
+>(tcl)#192.168.3.3
+>(tcl)#10.1.1.1
+>(tcl)#10.1.2.2
+>(tcl)#} { ping $address
+>(tcl)#}

Results

INE-CCNP ROUTE-IP Routing Overview

Personal notes regarding Frame Relay

Each of the connection need to be manually mapped

R2 static route points to s0/0 will need additional DLCI mapping under the serial0/0 interface. Map each of the routes individually to work. Using the debug command will show the encapsulation failure.

*Mar  1 01:31:26.115: Serial0/0:Encaps failed--no map entry link 7(IP).

Commands

# show frame-relay map - equivalent to show arp
# show frame-relay pvc xxx
# debug frame-relay packet
# debug frame-relay detail

Topology

Frame Relay switching

Configurations

R1

!
frame-relay switching
!
interface Loopback0
 ip address 1.1.1.1 255.255.255.255
!
interface Serial0/0
 ip address 10.0.0.1 255.255.255.0
 encapsulation frame-relay
 clock rate 2000000
 frame-relay map ip 10.0.0.2 103 broadcast
 frame-relay map ip 10.0.0.3 103 broadcast
!
ip route 2.2.2.2 255.255.255.255 10.0.0.2
ip route 3.3.3.3 255.255.255.255 10.0.0.3

R2

!
frame-relay switching
!
interface Loopback0
 ip address 2.2.2.2 255.255.255.255
!
interface Serial0/0
 ip address 10.0.0.2 255.255.255.0
 encapsulation frame-relay
 clock rate 2000000
 frame-relay map ip 1.1.1.1 203
 frame-relay map ip 10.0.0.3 203 broadcast
 frame-relay map ip 10.0.0.1 203
!
ip route 0.0.0.0 0.0.0.0 Serial0/0

R3

!
frame-relay switching
!
interface Loopback0
 ip address 3.3.3.3 255.255.255.255
!
interface Serial0/1
 ip address 10.0.0.3 255.255.255.0
 encapsulation frame-relay
 clock rate 2000000
 frame-relay map ip 10.0.0.2 302 broadcast
 frame-relay map ip 10.0.0.1 301 broadcast
!
ip route 1.1.1.1 255.255.255.255 10.0.0.1
ip route 2.2.2.2 255.255.255.255 10.0.0.2

GNS3 – New GUI and Icons

After fresh install of the GNS3, the welcoming screen which display the helpful links

Getting Started, Documentation, User Groups

Also the new Charcoal style (theme)

The New Project window popup

With the new Charcoal style, the icons are new as well.

GNS3 – Installing GNS3 1.2.1

Installing GNS3 1.2.1 is pretty straight forward and the following are the screen captures.

GNS3 1.2.1 Change logs : https://community.gns3.com/docs/DOC-1920

Download GNS3 1.2.1 here [ LINK ]

Depending on your machine, the installation would detect the WinPcap already been installed. You can cancel and skip it if you wish.

Downloading of Wireshark from the internet

Downloading of Solarwinds ResponseTimeViewer

GNS3 installation is done