Topology: VLAN Trunking GNS3 Lab – 802.1Q – Router On A Stick
Written by LBSources from http://www.gns3-labs.com on June 15th, 2008 | 60 CommentsThis is a lab testing VLAN trunking, subinterfaces, router on a stick and 802.1q (DOT1Q) using 3640 routers as routers using the NM-16ESW module. The PCs are also 3640 routers.
Routers Used: 3640 w/ NM-16ESW modules
IOS: c3640-jk9s-mz.124-16a
Feature of Topology: VLAN testing. Router On A Stick / Subinterfaces. Communicating with VLANs VIA the DOT1Q trunking protocol.
Download: GNS3 VLAN Trunk Lab
Dynamips – Dynagen Version: Dynamips-Dynagen-VLAN Trunk Lab With VPCS Config
Inspired by : 7200emu.hacki.at – vlan trunk lab
Important note from Jaap
Hi all,
Also stumbled on this one 
.
However, after adding the vlan’s (Hub,SW1 & SW2) I wasn’t able to ping from and to the nodes attached to SW2. I checked the trunk between Sw1 & SW2: show int fa0/12 switchport
ans everything looked fine, but it didn’t work. After deleting the trunk (line) and adding it back again, it worked fine. Pinging all over te place 
.
Enjoy .. LBS
Tags: 802 DOT1Q, 802.1q, Dynagen, Dynamips, GNS3 Topology, GNS3 VLAN Trunk Lab, Router Subinterfaces, VPCS
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June 15th, 2008 at 6:13 pm
Here is the config steps for those interested.. I modified them to the interfaces in this topology
PC1#configure terminal
no ip routing
ip default-gateway 192.168.1.10
interface e0/0
ip address 192.168.1.1 255.255.255.0
no shutdown
end
PC2#configure terminal
no ip routing
ip default-gateway 192.168.2.20
interface e0/0
ip address 192.168.2.1 255.255.255.0
no shutdown
end
PC3#configure terminal
no ip routing
ip default-gateway 192.168.1.10
interface e0/0
ip address 192.168.1.2 255.255.255.0
no shutdown
end
PC4#configure terminal
no ip routing
ip default-gateway 192.168.2.20
interface e0/0
ip address 192.168.2.2 255.255.255.0
no shutdown
end
R1#configure terminal
interface FastEthernet0/0
no shutdown
interface FastEthernet0/0.10
encapsulation dot1Q 10
ip address 192.168.1.10 255.255.255.0
interface FastEthernet0/0.20
encapsulation dot1Q 20
ip address 192.168.2.20 255.255.255.0
end
——SW1——-
SW1#vlan database
vlan 10 name vlan10
vlan 20 name vlan20
exit
configure terminal
interface f0/1
switchport mode access
switchport access vlan 10
no shutdown
exit
interface f0/2
switchport mode access
switchport access vlan 20
no shutdown
exit
interface f0/12
switchport mode trunk
switchport trunk encapsulation dot1q
no shutdown
exit
interface f0/0
switchport mode trunk
switchport trunk encapsulation dot1q
no shutdown
end
——SW2——-
SW2#vlan database
vlan 10 name vlan10
vlan 20 name vlan20
exit
configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
interface f0/1
switchport mode access
switchport access vlan 10
no shutdown
exit
interface f0/2
switchport mode access
switchport access vlan 20
no shutdown
exit
interface f0/12
switchport mode trunk
switchport trunk encapsulation dot1q
no shutdown
end
June 20th, 2008 at 10:37 pm
Hello,
How can I create Sw1 and Sw2? Using cisco3600 router? I did it. But, the switchmode port trunk command is not support? vlan also cannot be created!!!
June 20th, 2008 at 10:45 pm
remember that you must load the NM-16ESW port module in the slot.
July 25th, 2008 at 11:40 am
[...] case you have had a look at our Topology: VLAN Trunking GNS3 Lab – 802.1Q – Router On A Stick & need some help with configurations have a look over at [...]
July 29th, 2008 at 2:57 am
[...] References: http://www.gns3-labs.com/2008/06/15/topology-vlan-trunking-gns3-lab-8021q-router-on-a-stick/ [...]
July 29th, 2008 at 6:37 am
[...] You can also find some help in my lab GNS3-Labs:: Topology: VLAN Trunking GNS3 Lab – 802.1Q – Router On A Stick [...]
October 4th, 2008 at 5:52 pm
Great lab – but no step by step testing or explanations for beginners.
October 4th, 2008 at 6:04 pm
Hey Chris.. As I have said elsewhere..
Hey Chris .. These are not my goals. My goals are to compile complete labs I use for my own testing, or that others share, package them nicely and share with you all. You can then do your own testing and break-fix scenarios. I’m far from an instructor or have the knowledge to build test labs for others to solve.
You can learn more about the site here: http://www.gns3-labs.com/about-gns3-labs/
October 4th, 2008 at 8:50 pm
LBSources . . . I hear you and I still appreciate your lab. Dynamips and GNS3 are very good stuff. I’ve been going over your “Router on a Stick” lab and was at least expecting to have been able to ping 1 pc to another in the other vlan (or even in the same vlan) but was not able to. So I have to go over the configs to see if anything is missing. I was still pleasantly surprised to have it displayed and running on my instance of GNS3. The blindhog videos are great as well. I just need to read up on some networking material it seems. Thanks.
October 5th, 2008 at 12:09 pm
Sounds like you already have a scenario in the lab which you must fix. All labs on this site are delivered fully working.. This lab in particular is also the #1 topology of the site and I’m sure that someone else would have reported it non-working it truly was broken
..
October 6th, 2008 at 12:29 am
mmmmmm . . . sounds like reverse psychology to me. You wanted to come up with a broken lab so that people would have to work to fix it in the first place. Very good idea on your part!
November 19th, 2008 at 9:56 am
I has run Vlantrunklab, after finish load the configuration, From any PC, I can’t ping the default gateway and the PC in same VLAN, it’s only ping successfully it’s Ip address.
Please help me.
I use the lastest GNS3.
November 21st, 2008 at 10:48 pm
Nhan .. Thats the idea of labs buddy to sort it all out and get it working
December 10th, 2008 at 3:33 pm
I followed all the step, IOS c3640-jk9s-mz.124-16a, loaded the NM-16ESW port module, I’m using GNS3-0.5, and dynamips-0.2.8-RC2-x86. my operative system is Kubuntu 8.4 with KDE 3, everything works as should, but the trunk isn’t working. Do you have any idea why this happen? Thanks a lot.
December 11th, 2008 at 7:22 am
@rcastro That’s for you to figure out
January 7th, 2009 at 9:09 pm
GNS3 does not save vlan database. May be this explains problem with this lab?
January 7th, 2009 at 11:33 pm
@nucleo Create a new project from this lab .. You’ll get it working.. It can never be broken .. Its a architecture for you to correct.
January 8th, 2009 at 12:41 am
I just open VLAN.Trunk.Lab.net with corrected path to ios and configs and then started lab.
To make it working it is enough to do following steps
——SW1——-
SW1#vlan database
SW1(vlan)#vlan 10
SW1(vlan)#vlan 20
SW1(vlan)#exit
——SW2——-
SW2#vlan database
SW2(vlan)#vlan 10
SW2(vlan)#vlan 20
SW2(vlan)#exit
Vlan databases are saved in files c3600_SW1_bootflash and c3600_SW2_bootflash which are not in vlantrunklab.rar archive.
January 8th, 2009 at 6:34 am
@nucleo Great and that’s because those are working directory files which I never share due to size.
January 20th, 2009 at 2:13 am
hi ,
i have download VLAN.Trunk.Lab.net .when i LOGIN by console to SW1 or SW2 ,in sw1 or sw2 i is not showing any interface in it running configuration.i also not able to apply any command related to vlan.
so kindly provide the solution.
Regards,
Kamlesh Limbachiya
January 23rd, 2009 at 8:56 pm
@Kamlesh Remember the limitations of using a switching module in a router within GNS3. There are limits to how much VLAN work you’ll get done in GNS3.
Here is a list of what is missing with the 16 port switching module (NM-16ESW)
http://www.gns3.net/phpBB/post645.html?hilit=vlan#p645
February 20th, 2009 at 6:01 am
Hi all,
Also stumbled on this one
.
.
However, after adding the vlan’s (Hub,SW1 & SW2) I wasn’t able to ping from and to the nodes attached to SW2.
I checked the trunk between Sw1 & SW2: show int fa0/12 switchport
ans everything looked fine, but it didn’t work.
After deleting the trunk (line) and adding it back again, it worked fine.
Pinging all over te place
Greetz Jaap
March 7th, 2009 at 6:28 am
great is ya job guyz!!!!!
March 29th, 2009 at 4:21 pm
Hi LBS,
Besides “switchport” command, I’ve noted that “interface vlan” is supported only with NM-16ESW installed. Is this correct? I also tried this lab but I didn’t use NM-16ESW on the R1, but my ping wasn’t successful. Any ideas?
April 13th, 2009 at 12:26 am
Is there configuration in the HUB? how to send ping from PC4 to HUB ?
April 18th, 2009 at 7:08 am
Deleting and then adding the trunk lines didn’t help. SW2 shows fa0/12 line and protocol is up but SW1 fa0/12 shows line is up but protocol is down. Encapsulation is the same as how you’ve configured. Any ideas? TIA
April 18th, 2009 at 4:04 pm
Ok, so I detected mismatched duplex issue with the NM on SW1 and SW2. I’m replacing the NM4E modules with FE modules on all the other routers and post back soon. TIA
April 18th, 2009 at 4:10 pm
BTW, I tried setting the FEs to half duplex and speed settings to 10 but it was still detecting mismatches so I gave up…
April 18th, 2009 at 6:54 pm
This lab works. If you’re going to install NM4E on the Hub and PCs(routers), try to see if you can match the half duplex/speed on both SW1 and SW2. Otherwise, install FE modules for all the routers except SW1 and SW2. Thanks a bunch!!!
April 26th, 2009 at 3:35 pm
@runssh Glad I could help
Seriously, sorry I didn’t get to your questions.
@Tumur The configuration for the hub are already there.
@Paulo What did you use then?
August 8th, 2009 at 3:43 am
this works fine…..thansk a lot men..
February 15th, 2010 at 9:11 am
hi
i am using ubuntu and install gns3 and i follow all the step above by adding switch slot but that router(3660) could not support switchport command.is anything type before that command.
March 5th, 2010 at 8:52 am
hy all.. nice easy “roast” lab…this is basic stuff..if you switch to cisco packet tracer 5.2 you will have a much better interface to work from.gns3 is ok but i find it very limited.
March 5th, 2010 at 12:07 pm
@Andrew .. I haven’t used packet tracer at all, but I’ve heard that it doesn’t compare to the abilities of GNS3, at least with routing capabilities. GNS3 just lacks real switching.
March 5th, 2010 at 5:17 pm
yes your right..packet tracer has limited routing and gns3 is pretty good..like being able to use real ios images..but i only use packet tracer to check out my configs and labs before i move on to my real set up..gns3 switching limitations is a real bummer when your studying for exams.(having to configure routers as dummy switches is good command and config practice but for the less experienced its quite daunting).i use gns3 for more complicated routing configs and packet tracer for everthing else..i just think that some of the guys on here would not be having the problems they are having with a clear context.
they could move back to gns3 for routing configs as they gain experience..
anyway.. cool labs and good help and advice..like you i cant speak more highly of chris bryant and the bryant advantage…
May 5th, 2010 at 6:58 am
hub is router or switch?
May 5th, 2010 at 6:59 am
ohh sorry of course router
June 11th, 2010 at 8:13 am
from where should i download ios for gns3
June 12th, 2010 at 7:57 am
@Sam, We do not provide any IOS to anyone. It’s up to you to obtain the IOS. Please do not ask here for it.
June 22nd, 2010 at 11:06 am
We are using GNS3 0.7.1. We tried a simple topology with 3 routers 3640(one acting as a PC with a slot NM-1FE-TX, one as a switch with a slot NM-16ESW and one real router with a slot NM-1FE-TX).
The IOS image is: c3640-jk9s-mz.124-16a.bin
We’re working on a Unix machine Sun.
We write the same configuration as yours. But we can’t ping from the PC to the router!
Do you have any idea what may be the problem?
Thank you
October 5th, 2010 at 12:40 pm
I notice that with Windows 7 even if you change compatibility modes to XP EITHER GNS or WINDOWS 7 has issue. just running router on a stick I notice that, in the simplest configs I built, either the encapsulation isnt working since I cant ping other vlans, also in windows 7 I just found out that my NIO adapter cant connect to my outside interface…beside this…I can basically do most everything esle, so far…any feedback would be helpful…
October 6th, 2010 at 12:59 am
which one is yout R1 is it the hub im new to cisco
October 6th, 2010 at 11:19 pm
woo hooo pinging baby
December 11th, 2010 at 8:18 am
Thanks for this lab. I was planning to buy two catalyst 3550 switch for my Switching practice. Your lab works fine for switching practice. Thanks a lot…..
May 10th, 2011 at 5:43 pm
Was a bit disappointed with this video. Followed the video step by step, yet it didn’t work. Could’nt ping between PC1 and the gateway, or PC2 to the gateway.
I finally worked out that the video failed to cover these two commands on the PC’s
no ip routing
ip default-gateway 192.168.1.1 (or 2.1 for PC2)
Took me 30 minutes to find this. Good video, but shame it didn’t fully work at the end.
May 10th, 2011 at 6:30 pm
Oh and GNS3 seemed to have another random fault with this when it comes to vlans.
You have to do the order for the switchports correctly.
This order will not work :
R1(config-if)#switchport mode access
R1(config-if)#switchport access vlan 42
This order WILL work :
R1(config-if)#switchport access vlan 42
R1(config-if)#switchport mode access
No idea why this order seemed to be the only way I could get it to work
May 14th, 2011 at 2:31 pm
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October 17th, 2011 at 5:25 am
Not able to download the “GNS vlan trunk lab”, even though the rar is getting downloaded but when i try to open it, it is not working fine. Please look into it.
October 17th, 2011 at 5:57 am
I am new to GNS3, i have tested the routing labs every thing working fine. But once i came to the switching lab, it is becoming very hard to try out the lab. I could not download the c3640-jk9s-mz.124-16a. This 32 MB file downloaded from “4shared” site, it gets downloaded but some issue with the file opening. Can any one please help me find the correct download page.
November 25th, 2011 at 6:36 pm
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November 25th, 2011 at 8:29 pm
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May 10th, 2012 at 1:34 am
Every time I open one of these labs, it's error messages galore.
Never had this issue with Boson Netsim.