GNS3 0.8.4-R2 Issue with Cloud and Switch Module
Page 1 of 1

Author:  ToddBooth [ Thu Mar 21, 2013 10:56 am ]
Post subject:  GNS3 0.8.4-R2 Issue with Cloud and Switch Module


Thanks for the awesome product!

I'm having issues with GNS3 0.8.4-R2. The issue is when I connect to the GNS cloud, via a switch module.

Here is my configuration:

Windows 8 Pro x64, GNS3 0.8.4 RC2, WinPCAP 4.1.3, Dynamips 0.2.8 RC5, Qemu 0.11.0, Vpcs 0.4b2, image: Cisco 3660 with 128 MB Ram

The following works fine: I can create the Windows loopback adapter (via DM). Then I can share my ethernet, via MS ICS (internet connection sharing). If I use a normal ethernet port (Leopard-2FE), I can ping between the PC and the router. All is fine.

The following is the problem: Then I add the NM-16ESW module to the router. I remove the normal ethernet from the clould. I add a port from the switch module to the cloud. I do the required ip configuration. However the router can no longer ping the PC.

I did a wireshark capture on the switch module link to cloud.

Ping from pc to rtr. Result Pass: I can see the pc arp for the router.

Ping from rtr to pc: Result Fail: I can't see the rtr arp for the pc.

Here is the router output which shows no outbound or inbound traffic to the cloud:

Hardware is Fast Ethernet, address is cc01.12f0.f100 (bia cc01.12f0.f100)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:15, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
3 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

I also reproduced the above problem, in another way.

When I run my bare metal Hyper-V, from Windows 8, I created an Internal network switch.

When I connect from GNS rtr to Hyper-V via a normal rtr enet port, it works fine.

When I connect from GNS rtr to Hyper-v via a switch modulel port, I have the same exact problem (as above with a normal loopback).

If you want to come into my PC, via TeamViewer or Skype share my PC window, that is fine. Just first add me as a Skype contact. My Skype username is ToddBooth

I don't know if the above issue is also with older GNS software versions.


Todd Booth (in Sweden)

Page 1 of 1 All times are UTC
Powered by phpBB® Forum Software © phpBB Group