Testing...
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Begin forwarded message:
From: "Daniel Ng" <[EMAIL PROTECTED]>
Date: August 3, 2008 2:40:10 PM EDT (CA)
To: "Muthucumaru Maheswaran" <[EMAIL PROTECTED]>
Subject: RE: gini-RC5
I installed Ubuntu 8.04 on a virtual machine at home. Installing
GINI was n
Begin forwarded message:From: "Alexis Malozemoff" <[EMAIL PROTECTED]>Date: July 31, 2008 9:45:16 PM EDT (CA)To: [EMAIL PROTECTED]Subject: GINI Install Hi,I've attached the GINI Install instructions. I've had quite a fewissues installing on Fedora. Most of it was missing packages, so Iadded those
This is a test.. please ignore!
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Thanks.. I will check on the router.
did you try traceroute with an -I option?
this is essential because we need to use the ICMP packets instead of the UDP
which is the default one.
I will check the router tonight.. there is an outstanding bug with the
queues and I will fix them together if this is
There is a checksum problem with the traceroute packets
generated by the gRouter. I am fixing it now. Will release
the revised code very soon.
-mahes
+-+
| Muthucumaru MaheswaranWeb: www.cs.mcgill.ca
working now.
I have posted gini 1.02 on the website. If prefer not
to reinstall gini, please download grouter.tar.gz and
replace the src/grouter folder with the contents
of the tar.gz file.
Thanks.
-mahes
+-+
| Muthucumaru
Is hardy a Linux machine?
Looks like Pyro is not installed. Please try to install gini on the Lab
machines
(machine in ENGTR 3rd floor).
All necessary packages are already installed on them. On other machines, you
need
to get the system admins to install the required packages.
From: [EMAIL
Did you enable the auto IP/MAC generation?
You can do this by going to the "config" menu option and selecting the
"Toggle IP/MAC Auto-gen" option.
After doing this, save the topology and recompile the error should go away.
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of ke
68.10.0/24 in the properties
tab of
the subnet element.
From: kelvin poon [mailto:[EMAIL PROTECTED]
Sent: September-24-08 10:32 AM
To: Muthucumaru Maheswaran
Subject: Re: [gini] Configuring the mask of an interface
yes, i did and the error is still there?
So, you are saying that as long
could you please check this?
i don't remember needing iptables for the assignment.
-mahes
+-+
| Muthucumaru MaheswaranWeb: www.cs.mcgill.ca/~maheswar |
| School of Computer Science
mahes
+-+
| Muthucumaru MaheswaranWeb: www.cs.mcgill.ca/~maheswar |
| School of Computer ScienceEmail: [EMAIL PROTECTED] |
| McGill University Phone: (514) 398-1465 |
| 213B McConnell Engineering Building Fax:
old one. Please make sure it is executable.
If not, use chmod u+x linux-2.6.26.1 to set the execute permission on.
Thanks.
-mahes
+-+
| Muthucumaru MaheswaranWeb: www.cs.mcgill.ca/~maheswar |
| School of
This actually might be a bug on gBuilder.
goto the gini/data directory. You should see a Switch_# directory. There
should be one directory
for each switch in your topology. Remove these directories and the files
inside them. Restart
gBuilder and read the topology file and recompile and proceed.
08 10:49 PM
To: Muthucumaru Maheswaran
Cc: George Ciobanu; gini@cs.mcgill.ca
Subject: Re: [gini] weird error
Make sure to not delete the cow files. That will delete all your work
done on the UMLs.
2008/9/26 Muthucumaru Maheswaran <[EMAIL PROTECTED]>:
> This actually might be a bug on gBui
Sorry.. I misread Alex's reply. Please disregard my previous email.
-Original Message-
From: Alexis Malozemoff [mailto:[EMAIL PROTECTED]
Sent: September-26-08 10:49 PM
To: Muthucumaru Maheswaran
Cc: George Ciobanu; gini@cs.mcgill.ca
Subject: Re: [gini] weird error
Make sure t
the topology works for me.
how did you generate it?
-mahes
+-+
| Muthucumaru MaheswaranWeb: www.cs.mcgill.ca/~maheswar |
| School of Computer ScienceEmail: [EMAIL PROTECTED] |
| McGill
-mahes
+-----+
| Muthucumaru MaheswaranWeb: www.cs.mcgill.ca/~maheswar |
| School of Computer ScienceEmail: [EMAIL PROTECTED] |
| McGill University Phone: (514) 398-1465
Hi all,
I will be putting a new version of GINI to fix a bug in the
router and also provide the missing "filter" command in the
current version.
It will be up on the website in few hours.
Thanks.
-mahes
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+-+
| Muthucumaru MaheswaranWeb: www.cs.mcgill.ca/~maheswar |
| School of Computer ScienceEmail: [EMAIL PROTECTED] |
| McGill University Phone: (514) 398-1465 |
| 213B McConnell Engineering Building Fax: (514
mmand..
iptables is a packet filtering mechanism at each machine. in this
assignment, for
packet filtering, you use the "filter" command provided by the router.
i hope this is clear.
From: Imad Gharazeddine [mailto:[EMAIL PROTECTED]
Sent: October-18-08 8:10 PM
To: Muthucumaru MAHESW
Thanks Imad.
I found the problem.. as you suggested the temporary
fix is to open UML_10 before UML_1 and so on.
I will try to fix it in the next bug fix release.
-mahes
+-+
| Muthucumaru MaheswaranWeb
In the first case, we have host D as the only reflector.
In the second case, increase the number of reflectors to while
maintaining roughly
the same total packet rate. One easy way is to use hosts from the
same subnet as
D as additional reflectors.
Hope this helps.
On 23-Oct-08, at 7:35
Yes.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Benjamin Nahill
Sent: November-01-08 11:14 AM
To: Robert Rolnick; gini@cs.mcgill.ca
Subject: [gini] RE: Bug in Gini 1.5 source code?
We noticed this as well. Our UDP code would not run unless the retur
I am cutting and pasting the following lines from ip.c. They show how the
IPOutgoingPacket() routine detects the source address of the router.
Remember
the source address of the router is dependent on the interface that is being
used to push the packet out.
verbose(2, "[IPOutgoing
debug information.
-Original Message-
From: Julien Lord [mailto:[EMAIL PROTECTED]
Sent: November-07-08 7:40 PM
To: Muthucumaru Maheswaran
Subject: Re: compiling the grouter
Is there any way to print debug information to the shell that's
running the gbuilder? My printouts don't
-16-08 11:53 PM
To: Muthucumaru Maheswaran
Cc: Alexis Malozemoff
Subject: Re: New version of GINI
Ok this worked. Is it safe to remove the entire 'data' directory which
contains the UML_# directories?? Or should we keep it?
-- Imad
On Sun, Nov 16, 2008 at 11:48 PM, Muthucumaru
Gharazeddine | McGill
Sent: November-16-08 11:53 PM
To: Muthucumaru Maheswaran
Cc: Alexis Malozemoff
Subject: Re: New version of GINI
Ok this worked. Is it safe to remove the entire 'data' directory which
contains the UML_# directories?? Or should we keep it?
-- Imad
On Sun, Nov 16, 200
).
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Imad
Gharazeddine | McGill
Sent: November-16-08 9:29 PM
To: Muthucumaru Maheswaran; gini@cs.mcgill.ca
Subject: Data Offset field contradiction
During our attempt to create an STCP packet, we encountered this problem:
RFC 793 states
if you want to set the SYN bit to 1, please use
hping2 -s 8000 -p 8000 --syn
if you want to set the ACK bit to 1, please use
hping2 -s 8000 -p 8000 --ack
and so on..you should be able to combine them to set more than one
flag bits as needed.
On 17-Nov-08, at 11:57 PM, Imad Gharazeddine
ER the CTRL BITS field to
manipulate in this new case... so i'm not sure how to approach this
now. Setting a SYN bit is supposed to give a CTRL BITS field of
0010 when it in fact is giving 1000.
Any hints/ideas?
-- Imad
On Mon, Nov 17, 2008 at 12:06 AM, Muthucumaru Maheswaran
If an incoming TCP has timestamp option, then you need to have the
timestamp option in the returning packet.
The other options are not needed. WHen you copy back the timestamp
option, please note that this field has
10 bytes. When handling the timestamp option, it is advisable not to
use C
By turning off the timestamps in TCP, your program is simpler.. you
don't need
to deal with them!
Also, please note we don't have congestion control (fixed window
sizes) and no
RTT estimation (just assume a sensible value for the timeout).
On 19-Nov-08, at 6:25 PM, Alexis Malozemoff wro
feel free make a simplifying assumption regarding the closing
side. you don't need to go into the wait state. I should have
suggested in the initial handout that the TCP state machine
can be significantly simplified - this means your state machine
would have far fewer states than the normal one.
Aslam [mailto:[EMAIL PROTECTED]
Sent: December-02-08 8:08 PM
To: Muthucumaru Maheswaran
Subject: Assignment 6
Hi,
We were trying to make UML listen for multicast messages (or at least send
IGMP report msg to router) by using given "listener.c" program.
But it fails with error saying "
you need to setup a default route to overcome the "No such device" error.
Please see
http://www.mail-archive.com/gini@cs.mcgill.ca/msg00089.html
the sender.c and listener.c are already on the UML.
please see under the folder chap9. the full path of the files are
given on the handout.
Hi Prasad,
I am delighted to see that you have started working on GINI.
I can definitely help you. We are working on the GINI interface and a new
version will be out end of this summer.
I assume your topology has two machines and a router?
Where are starting the pings from? One machine to another
Also.. could you please use the
gini@cs.mcgill.ca address for your emails regarding GINI?
This mailing list is read by my students working on GINI.. so they could
chip in with their
thoughts as well.
--
From: "Muthucumaru Maheswaran"
Se
Please ignore!
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It seems the sshd is not running on the destination machine.
Please log into 192.168.2.8 and run
sshd
This should start the SSH deamon.
-Original Message-
From: gini-boun...@cs.mcgill.ca [mailto:gini-boun...@cs.mcgill.ca] On Behalf
Of Sanket Manjul Joshipura
Sent: Sunday, September 20,
When you run netstat -rn you are looking at the Linux host's routing table!
Use route show to see the routing table at the gRouter.
-Original Message-
From: gini-boun...@cs.mcgill.ca [mailto:gini-boun...@cs.mcgill.ca] On Behalf
Of Sanket Manjul Joshipura
Sent: Sunday, September 20, 2009 1
Thanks. We will try to integrate it into gRouter in the next release I will
do over the weekend.
I assume the virtual machines worked without any problems on x64.
-Original Message-
From: gini-boun...@cs.mcgill.ca [mailto:gini-boun...@cs.mcgill.ca] On Behalf Of
Samuel Cormier-Iijima
Sen
I did not try it with this version of GINI. But we used to have the
following working to
directly access the host from the UML. From the old manual... please let me
know whether it
works or not. There are other ways.. but this is the easiest.
You can mount the lo
i did not understand your questions properly...
they could be
al...@pluto.qc and b...@mars.mb as well.
On 2009-10-04, at 2:54 PM, John Poth wrote:
> Hello,
> Should the e mail addresses be al...@mail.pluto.qc and b...@mail.mars.mb
> ???
> thanks,
> john.
>
Also, remember to remove the previous installation of the libslack.
If the previous installation is still there (most likely in /usr/lib) it
will
be picked up and you will continue to get the error. The new install should
go into /usr/local/lib and it should work... although we haven't tested it
on
I try to restart the machines, then also it doesn't work.
>
>
> Thanks
>
>
> Sanket
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+
The client is connecting to port 5001 while the
server is listening on port 5000.
I think you need to specify the port at the client side.
try using the -p 5000 option or
just specify 5000 after the hostname. One of them should
work.
type
iperf -help
to see the options.
-Original Message--
sysctl -w name_of_the_option=value
-Original Message-
From: gini-boun...@cs.mcgill.ca [mailto:gini-boun...@cs.mcgill.ca] On Behalf
Of Sanket Manjul Joshipura
Sent: Thursday, November 05, 2009 7:28 PM
To: gini@cs.mcgill.ca
Subject: [gini] sysctl
Hi,
Using sysctl -a | grep broad we found t
Are you using the latest version of the gRouter?
The previous version might have a bug.
On 2009-11-09, at 8:29 PM, Raymond Chan wrote:
> Hi,
> I was wondering if anyone has any problems using the filter and
> queue commands on grouter. Every filter I add seems to block all
> traffic, for
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