…
sudo dynagen labs/eigrp/sample.net
Reading configuration file…

Shutdown in progress…
Shutdown completed.
*** Warning: unknown device type: Cloud
*** Warning: ignoring unknown config item: connections = Corp:f0/0:NIO_tap:lin_cis_tap
…

I followed this steps:

1. Configure the bridge

#!/bin/bash

Tap=”tap0″
Interfaz=”eth3″
Ip_puente=”192.168.1.30″
Puerta_puente=”192.168.1.1″
Puente=”br0″
Mascara=24

#####################################################################

# Create a new bridge interface
brctl addbr $Puente
ip l s dev $Puente up
# Create a tap interface
tunctl -t $Tap
ip l s dev $Tap up
# Add $Tap and $Interfaz to the bridge group
brctl addif $Puente $Tap
brctl addif $Puente $Interfaz
ifconfig $Interfaz 0.0.0.0 promisc
ip a a $Ip_puente/$Mascara dev $Puente
ip r a default via $Puerta_puente

2. Configure router and cloud in GNS3:

autostart = False
[localhost:7200]
workingdir = /tmp
udp = 10000
[[7200]]
image = /home/datos/master/RT/pract/ios/c7200-advipservicesk9-mz.124-4.T1.bin
ghostios = True
[[ROUTER R0]]
console = 2000
slot1 = PA-2FE-TX
[[ROUTER R1]]
console = 2002
slot1 = PA-2FE-TX
f1/0 = nio_linux_eth:tap0
x = -106.0
y = -123.0
[GNS3-DATA]
[[Cloud C1]]
x = -156.5
y = 38.0
connections = R1:f1/0:nio_linux_eth:tap0

3. Try ping from router:

Router#ping 192.168.1.30

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.30, timeout is 2 seconds:
…..
Success rate is 0 percent (0/5)

4. Try ping from my pc:

d610:/tmp# ping 192.168.1.200
PING 192.168.1.200 (192.168.1.200) 56(84) bytes of data.
From 192.168.1.30 icmp_seq=2 Destination Host Unreachable
From 192.168.1.30 icmp_seq=3 Destination Host Unreachable
From 192.168.1.30 icmp_seq=4 Destination Host Unreachable
From 192.168.1.30 icmp_seq=5 Destination Host Unreachable

When I capture packages with wireshark I notice that my virtual router (MAC address ca:02:17:76:00:1c) sent packagest to my virtual bridge (MAC address
00:16:6f:a9:ad:3c), but gets no reply:

SOURCE DESTINATION Protocol Info
ca:02:17:76:00:1c Intel_a9:ad:3c 0×0800 IP

Some help?

Thanks

I followed your tutorial twice but I end up getting the same result. I’m running Ubuntu 9.10 64-bit as Host OS and a vmware vm. When I’m done with all the configuration in this tutorial:

- from my host OS I’m able to ping every device (including the router in my GNS3 lab)
- from my vmware vm I’m able to ping my host OS (br0 ip address) and every other device except the router in my GNS3 lab.
- from my GNS3 lab’s router I’m able to ping only the br0 ip address.

I need help.

Thanks in advance for toy help,

Mike.

Thanks a lot for this tutorial, I was looking for something like it for almost two weeks.

However, I have a question, is it possible to connect GNS3 to the Internet? The scenario I have contains a router connected to a cloud and this cloud has a tap0 interface that is connected to my real PC. The problem here is if I set the default gateway of the tap0 interface to point to my router I will lose the connection between my PC and the Internet. Is there a solution for this? As an example, can I give the tap0 interface an IP and default gateway which is different then the eth0 IP and default gateway?

Thanks in advance for your help.

Cesar

This is very self explanatory. Thanks a lot for this tutorial. I just moved from Win to Linux and this came very handy to keep working with my voice labs.

Now, I do have access to the internal from my GNS3 labs xD. Thanks in advance fella.

PS:I have been looking for a nice tutorial how to setup CCM on VMware using Ubuntu instead Windows(which is the way I used to do it). I found some posts related to it but is not what I’m looking for. Do you have any idea Chief?

Thanks,
Sephiroth