So I'm studying for my ICND2 exam.
line vty 0 4 is configured for login, and has a password on both devices
transport input telnet ssh is configured
I'm already coming over from Packet Tracer and everything is working smoothly over there, but I've decided to move to a more realistic approach of studying; and here I am, stumbling upon my first tiny rock =D.
Also, another tiny question: why is it that I have to enable the interface on SW1 which is connected to R2? I thought that once I enable int vlan 1 and connect anything to any switchport, those switchports are automatically enabled. Or is that just in Packet Tracer?
*SW1 and R2 configs are attached
Yes, my switch is a router with a switching module.
I have attached the topology.net file (I hope this is the one you're looking for).
Ehem...I found out the problem.
I'm used to doing "no exec-timeout" on routers/switches in Packet Tracer by typing "no exec" under the vty lines because that was the only command that contains "exec". I just found out that there are different "exec" commands in GNS3 (i.e., in the actual IOSs). Now, naturally, I was typing "no exec" in GNS3 to do no exec-timeout, but that was actually disabling telnet (??).
I feel like an idiot. I actually went into creating an access list (I just reached ACLs in ICND2 studying) to permit the other device to telnet. Packets were permitted! But telnet still never went through. Then I tried reinstalling GNS3 hoping that that would fix the problem (deep inside, I didn't believe that =/, but it was worth a try).
Anyways, time to build a topology.
While we're at it Martin, I have a question regarding idle-pc in GNS3. I'll be using around 7 or 8 c3700 routers in my project, when do I calculate idle-pc? Do I add a router, turn it on, do basic configuration, idle-pc, then bring up another router and turn it on, and repeat the process? Or can I just add them all, do basic config on each, then just idle-pc one of them (then I think GNS3 applies that idle-pc to all of them)?
When you configure an IDLE PC value for a specific router it is attached to that IOS image. So if you create an IDLE PC value for one 3700 router it will automatically be used by the succesive routers using the same image. No need to configure it multiple times.
OK, I forgot about this problem, glad you solved it;
do idle pc on 1 running router and just once with console window open and login, set no exec-timeout so the window never times out; otherwise, when console window times out, your CPU usage will raise a bit;
at some point, depends on RAM and GNS3 settings, adding next router will create a new dynamips process. then you could do another idle pc but this is not necessary
or small improvment (unless your pc is old)
see gns tips https://learningnetwork.cisco.com/thread/23445
I'm getting the same error although I have set exec-timeout to 30 minutes.
Pfa attached conf of both the routers.