GNS3

Easiest thing would be to get stuck in to the books, try and build networks to go along with examples etc. You can also look around for Packet Tracer/GNS3 troubleshooting labs; Now those will keep you busy and help you deal with real world scenarios.
 
I'm giving this CCNA book a read to maybe try and get used to some of the commands I could use to configure the routers.

Can you point me in the right direction to any good tutorial sites or do you think the stuff on YouTube would be sufficient?

Shame their isn't any books on GNS3 that I could use.

Cheers
Tom.
 
TomElZ said:
I'm giving this CCNA book a read to maybe try and get used to some of the commands I could use to configure the routers.

Can you point me in the right direction to any good tutorial sites or do you think the stuff on YouTube would be sufficient?

Shame their isn't any books on GNS3 that I could use.

Cheers
Tom.
Click to expand...

GNS3 have their own forum, that contains sample labs etc.
 
Jas1975 said:
Bear in mind that IOS is also licensed so you need to be licensed to use it within GNS..... cough cough......
Click to expand...
Which is technically impossible I believe as the IOS license is linked to a piece of hardware. I've read online that Cisco aren't too concerned with GNS3 as they see it as no risk (it may have been Jeremy Cioara that said it, but I doubt its an official statement).
 
moss said:
Which is technically impossible I believe as the IOS license is linked to a piece of hardware. I've read online that Cisco aren't too concerned with GNS3 as they see it as no risk (it may have been Jeremy Cioara that said it, but I doubt its an official statement).
Click to expand...

I don't disagree on the copyright policing front from Cisco, but try linking an IOS image on the GNS forums and see what reaction you get - then come back and say its fine.
 
Do any of you know the best way to represent an end-user?

I.E. If I wanted to connect a number of terminals/end-users to the network?
 
Cheers - have been using VM's or routers acting as hosts. Both do pretty much the same job when configured correctly.

One thing I am slightly worried about is the lack of results that GNS3 output's. As mentioned previously in this thread, my Final report includes a heavily weighted section on Technical Content, i.e. graphs displaying results what I can talk about. Now I know other network simulation programs like OPNET include a wealth of graph plotting material however GNS3 seems to lack this completely.

Does anyone know any way in which I can produce output that I can discuss within my report?

Regards
Tom.
 
SNMP graphs from the Router running under GNS3.

GNS3 isn't going to provide the output, its just a Hypervisor, all the information you want is on the Virtual Routers/OSs

HEADRAT
 
Could you please give me some more information on this as I am not familiar with the term SNMP.

Is it an application that I can use to obtain graphs based on my GNS3 simulation?
 
Yeah me too but hey gotta start somewere!

Will have a look at them links cheers - just that i need something to analysis/discuss and without any graphs that is going to be difficult.
 
Hi again.

So I've created a basic VLAN with One router, One Switch, and Two VLAN's (VLAN 10 & VLAN 20) both of which are connected to the Switch which is then connected to the router. Each VLAN has 4 hosts and each host can communicate with each other - so Host A (VLAN 10) can communicate with Host D who is on VLAN 20.

Now I am trying to add another Switch which is connected to the first Switch so I can set up VLAN's 30 and 40 from this Switch and each host should be able to communicate with one another.

Now I've set up the second switch and tried to create VLAN 30 with just the one host for now, however I can't for the life of me get the host to be able to communicate with VLAN's 10/20 and vice versa.

Any ideas where I am going wrong here?
 
You need to create another sub interface on the router for dot1q 30 for vlan 30 and give it an ip in the vlan 30 range.

There has to be a sub interface with dot1q for each vlan, on the router if you want the VLANS to communicate. This is called Router on a stick or Inter-VLAN Routing :)
 
I think I have done.


interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.10
encapsulation dot1Q 10
ip address 192.168.1.1 255.255.255.0
!
interface FastEthernet0/0.20
encapsulation dot1Q 20
ip address 192.168.2.1 255.255.255.0
!
interface FastEthernet0/0.30
encapsulation dot1Q 30
ip address 192.168.3.1 255.255.255.0
 
I think I am a bit stuck on how to set SW2 (Switch 2) up correctly. Am I to give it an IP address 192.168.3.2 and an IP route of 192.168.3.1?

I think I have something working. Switch 1 is set up so it reads 'switchport access vlan 30 on the interface it uses to connect to SW2. SW2 is set up with IP address of 192.168.3.2 with IP route of 192.168.3.1. Can now ping all of the hosts so am I right in thinking that if I connect some hosts now to SW2 and configure them with IP address 192.168.3.x and IP route 192.168.3.1 they should all communicate?
 
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