Comments for joshatterbury.com - CCIE #23347

Comment on Part 2 of Dynamips External Cloud Interface on Linux by blindhog.net » Linux Bridging for GNS3 LAN communications

blindhog.net » Linux Bridging for GNS3 LAN communications — Mon, 18 Jan 2010 19:56:12 +0000

[...] I discovered that I was able to communicate with every device on the LAN except the actual host machine. While troubleshooting, I finally read the GNS3 FAQ. Then I learned how to solve the problem with Josh Atterbury’s posts: ‘Dynamips External Cloud Interface on Linux – Part1 and Part2. [...]

Comment on Part 1 of Dynamips External Cloud Interface on Linux by blindhog.net » Linux Bridging for GNS3 LAN communications

blindhog.net » Linux Bridging for GNS3 LAN communications — Mon, 18 Jan 2010 19:55:00 +0000

[...] with Josh Atterbury’s posts: ‘Dynamips External Cloud Interface on Linux – Part1 and [...]

Comment on Part 1 of Dynamips External Cloud Interface on Linux by mihwar

mihwar — Thu, 17 Dec 2009 06:27:23 +0000

Dinamips doesn’t understand device type “Cloud”. But why?

…
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
…

Comment on Part 1 of Dynamips External Cloud Interface on Linux by Javier

Javier — Mon, 14 Dec 2009 15:44:10 +0000

Hi.

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

Comment on Part 1 of Dynamips External Cloud Interface on Linux by Mike

Mike — Thu, 19 Nov 2009 02:54:53 +0000

Hi Josh,

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.

Comment on CCIE SP Technology Workbooks by Lukasz

Lukasz — Mon, 09 Nov 2009 21:18:21 +0000

Thanks Josh for work that you’ve done to provide this scenario with configs.
I checked PPPoA scenario and it doesn’t work for me. I put the same config as you did but can’t negotiate PPP nor receive IP address from Peer.
Could you tell me what image you’re using? I use two 7200 routers with c7200-p-mz.124-21.bin image. Thanks for any advises on this.

Comment on Guess what arrived! by Alper Sakarya

Alper Sakarya — Fri, 09 Oct 2009 22:43:15 +0000

Very very cool, I only hold ccna, ccna security, wlans and voice, hopefully one day I’ll be CCIE as well.

What a nice of you, I adore it

Comment on CCIE SP Technology Workbooks by shivlu jain

shivlu jain — Thu, 01 Oct 2009 16:18:23 +0000

thanks for update.

Comment on Back on the CCIE Train. by Matt

Matt — Mon, 14 Sep 2009 04:24:50 +0000

No SP lab dates until March next year mate. Looks like that decision has already been made for you

Comment on CCIE SP Technology Workbooks by IE COD for SP and R&S - TechExams.net IT Certification Forums

IE COD for SP and R&S - TechExams.net IT Certification Forums — Tue, 25 Aug 2009 15:56:34 +0000

[...] this back to life…Josh Atterbury is posting some of his labs into a workbook for the SP here: joshatterbury.com - CCIE #23347 Blog Archive CCIE SP Technology Workbooks Hope this helps someone out. I couldnt remember who said they were hitting the SP track. [...]