[OLSR-users] PLEASE UNSUBSCRIBE (spam-protected)
Smith, Adam T.
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Wed Apr 20 14:37:58 CEST 2005
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Today's Topics:
1. dot_draw plugin problem in 0.4.9 ((spam-protected))
2. Re: Double radio mesh test (Andrew Hodel)
3. Re: dot_draw plugin problem in 0.4.9 (Andreas T?nnesen)
4. secure plugin questions in 0.4.9 ((spam-protected))
5. Re: secure plugin questions in 0.4.9 (Andreas T?nnesen)
6. Re: Double radio mesh test (dennis khoo)
7. Re: secure plugin questions in 0.4.9 ((spam-protected))
8. Re: Double radio mesh test (Henrion Benjamin)
9. Re: Double radio mesh test (dennis khoo)
----------------------------------------------------------------------
Message: 1
Date: Tue, 19 Apr 2005 23:33:53 +0800 (CST)
From: <(spam-protected)>
Subject: [OLSR-users] dot_draw plugin problem in 0.4.9
To: (spam-protected)
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=gb2312
I compiled and install plugin no problem.
When I ran #olsrd, I got error as following:
===============================
Parsing file: "/etc/olsrd.conf"
Config line 169: syntax error
Using default config values(no configfile)
No interfaces configured!
Bad configuration!
OLSR EXIT: main
Terminated
===============================
my losrd.conf look like:
===============================
167: LoadPlugin "olsrd_dot_draw.so.0.3"
168:
169: LoadPlugin "olsrd_secure.so.0.5"
170: {
171: PlParam "Keyfile"
172:"/root/.olsr/olsrd_secure_key"
173: }
===============================
If I took the line 167 out from olsrd.conf, my secure
pluging ran OK.
Any one know how to fix it?
Thanks
James
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Message: 2
Date: Tue, 19 Apr 2005 10:45:34 -0500
From: Andrew Hodel <(spam-protected)>
Subject: Re: [OLSR-users] Double radio mesh test
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
As I can recall from the many conversations about mesh dynamics, and the
lack of support for the GPL from them, they use 3 radios. 1 is to
determine channel allocation for the other 2.
The have developed real time kernel extensions for the wireless drivers
to allow this functionality, and this is the reason people are
complaining about the GPL. According to GPL they should release this stuff.
read:
http://www.smallworks.com/archives/00000072.htm
read comments here:
http://hardware.slashdot.org/article.pl?sid=05/03/06/1432243&tid=193
http://dailywireless.org/modules.php?name=News&file=article&sid=2750
Andrew
Henrion Benjamin wrote:
>Henrion Benjamin <(spam-protected)> [050418]:
>
>
>>Stefan Sayer <(spam-protected)> [050418]:
>>
>>
>>>Hello,
>>>
>>>I wonder whether meshdynamics' multi radio network is configured in a
>>>distributed way or whether there is e.g. a central station that would
>>>let the other station channel hop - they say that the network will
>>>dynamically adapt to interference.
>>>
>>>
>
>About meshdynamics internals, there are nice pictures of their routers
>here:
>
>http://www.linuxdevices.com/articles/AT8452908209.html
>
>It has 4 minipci slots and 3 radios...
>
>
>
>>>If it is really distributedly self configuring then I wonder how a
>>>station can find a neighbor station that has hopped to another channel
>>>to talk to another node (avoiding interference on the previous channel)
>>>without scanning all the time. consider this:
>>>
>>>first A is talking to B on ch1
>>>A 1 ----------- 1 B
>>>
>>>C D
>>>
>>>then A and C hop to ch 6 while e.g. B talks to D on ch1
>>>A 6 1 B
>>> | |
>>>C 6 1 D
>>>
>>>then B wants to talk to C: how does it know on which channel ?
>>>
>>>
>>(I assume that B does not see C directly)
>>
>>Then you have 2 options:
>>
>>A 1--------------1 B
>>6
>>|
>>|
>>6
>>C
>>
>>Or
>>
>>A 6--------------6 B
>>1
>>|
>>|
>>1
>>C
>>
>>The protocol should choose solution 1 or 2 by having either a "Link
>>Quality" value for each connexion, or either a direct bandwidth
>>measurement (which can vary with the traffic). In this last case, if the
>>traffic is high on one connexion at time t, it won't be necessary the
>>case at t+1. Maybe a value of "real available bandwidth" would be
>>interesting to have for the protocol, as a mean to choose the best path.
>>
>>
>>
>>>In their graphics about 2,3,4 radios they never have a more realistic
>>>mesh situation where some nodes are in the same range - there is alway
>>>only two nodes in one circle.
>>>
>>>
>>Yes, that's a problem. Choosing which neighboor to transmit is not a
>>problem, since the node has not the choice in this case.
>>
>>The problem is to get values of throughput for each link. No?
>>
>>
>>
>>>Stefan
>>>
>>>
>>>Jeromie Reeves wrote:
>>>
>>>
>>>>That should work fine. The trick will be to use manual channel selection
>>>>to avoid having the same channel space
>>>>on every single unit (IE 1 & 11 on every unit).
>>>>
>>>>1 & 11 --- 1 & 6 --- 6 & 11
>>>>
>>>>That way you force the packets to change radios and help stop self
>>>>interferance
>>>>There is no problem having units around that also use the same channels,
>>>>just dont
>>>>do it network wide.
>>>>
>>>>Jeromie
>>>>
>>>>Henrion Benjamin wrote:
>>>>
>>>>
>>>>
>>>>>Very interesting report here:
>>>>>
>>>>>http://www.meshdynamics.com/MDTestResults3Radio.html
>>>>>
>>>>>You only need 2 radios/node if you don't care about "people with their
>>>>>laptops" who access with the 3rd.
>>>>>
>>>>>Is it possible to do the same with OLSR? Maybe OLSR running on 2
>>>>>different wireless interfaces on 2 different channels (like 1 and 11)?
>>>>>
>>>>>Do you think it might be possible?
>>>>>
>>>>>--
>>>>>Benjamin Henrion <(spam-protected)>
>>>>>http://bh.udev.org
>>>>><< Software patents are a
>>>>>Temptation >>>
>>>>><< Temptation leads to
>>>>>Stagnation >>>
>>>>><< Stagnation leads to the Dark
>>>>>Side. >>>
>>>>>_______________________________________________
>>>>>olsr-users mailing list
>>>>>(spam-protected)
>>>>>https://www.olsr.org/mailman/listinfo/olsr-users
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>_______________________________________________
>>>>olsr-users mailing list
>>>>(spam-protected)
>>>>https://www.olsr.org/mailman/listinfo/olsr-users
>>>>
>>>>
>>>>
>>>>
>>
>>
>>
>>>_______________________________________________
>>>olsr-users mailing list
>>>(spam-protected)
>>>https://www.olsr.org/mailman/listinfo/olsr-users
>>>
>>>
>>--
>>Benjamin Henrion <(spam-protected)>
>>http://bh.udev.org
>><< Software patents are a Temptation >>>
>><< Temptation leads to Stagnation >>>
>><< Stagnation leads to the Dark Side. >>>
>>_______________________________________________
>>olsr-users mailing list
>>(spam-protected)
>>https://www.olsr.org/mailman/listinfo/olsr-users
>>
>>
>
>
>
------------------------------
Message: 3
Date: Tue, 19 Apr 2005 17:48:49 +0200
From: Andreas T?nnesen <(spam-protected)>
Subject: Re: [OLSR-users] dot_draw plugin problem in 0.4.9
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=UTF-8; format=flowed
(spam-protected) wrote:
> If I took the line 167 out from olsrd.conf, my secure
> pluging ran OK.
>
> Any one know how to fix it?
Add
{
}
after the dot_draw load directive.
- Andreas
--
Andreas Tønnesen
http://www.olsr.org
------------------------------
Message: 4
Date: Wed, 20 Apr 2005 00:16:17 +0800 (CST)
From: <(spam-protected)>
Subject: [OLSR-users] secure plugin questions in 0.4.9
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=gb2312
Thanks for help.
I have some questions in secure plugin.
By default, does it use /usr/include/openssl/sha.h for
the encryption of digital signature?
If sha.h is not found, then it will use
/usr/include/md5. Am I right?
If I want to use md5 instead of sha, do I just rename
the sha.h to sha.h.bak? So it will use md5?
Is it possible to use other algorithms, e.g. RIPEMD160
and SHA256 by modifying the source code?
Thanks again.
James
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------------------------------
Message: 5
Date: Tue, 19 Apr 2005 18:51:05 +0200
From: Andreas T?nnesen <(spam-protected)>
Subject: Re: [OLSR-users] secure plugin questions in 0.4.9
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=UTF-8; format=flowed
the plugin uses MD5 bu default. To use OpenSSL SHA-1
you must do:
make USE_OPENSSL=1
It does not support any other algorithms then SHA-1 and MD5.
- Andreas
(spam-protected) wrote:
> Thanks for help.
>
> I have some questions in secure plugin.
>
> By default, does it use /usr/include/openssl/sha.h for
> the encryption of digital signature?
> If sha.h is not found, then it will use
> /usr/include/md5. Am I right?
>
> If I want to use md5 instead of sha, do I just rename
> the sha.h to sha.h.bak? So it will use md5?
>
> Is it possible to use other algorithms, e.g. RIPEMD160
> and SHA256 by modifying the source code?
>
> Thanks again.
>
> James
>
>
>
> __________________________________
> Do you Yahoo!?
> Plan great trips with Yahoo! Travel: Now over 17,000 guides!
> http://travel.yahoo.com/p-travelguide
> _______________________________________________
> olsr-users mailing list
> (spam-protected)
> https://www.olsr.org/mailman/listinfo/olsr-users
--
Andreas Tønnesen
http://www.olsr.org
------------------------------
Message: 6
Date: Tue, 19 Apr 2005 10:35:31 -0700 (PDT)
From: dennis khoo <(spam-protected)>
Subject: Re: [OLSR-users] Double radio mesh test
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=us-ascii
> Is it possible to do the same with OLSR? Maybe OLSR
> running on 2
> different wireless interfaces on 2 different
> channels (like 1 and 11)?
>
> Do you think it might be possible?
>
Yes, we routinely run this config on a board with 2
radios. Check out
http://www.olsr.org/pipermail/olsr-users/2005-January/000500.html
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Message: 7
Date: Wed, 20 Apr 2005 03:53:42 +0800 (CST)
From: <(spam-protected)>
Subject: Re: [OLSR-users] secure plugin questions in 0.4.9
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=gb2312
I compiled the source as follows:
---------------------------
make USE_OPENSSL=1 OS=linux
make install USE_OPENSSL=1 OS=linux
---------------------------
The installation was OK, but when I ran the olsrd, I
got following error:
---------------------------
Library: olsrd_secure.so.0.5
DL loading failed: "/usr/lib/olsrd_secure.so.0.5:
undefined symbol: MD5Final"!
-- PLUGIN LOADING FAILED! --
---------------------------
It seems that the problem happened at Line 76 of
../secure/src/olsrd_secure.c
Any suggestions?
Thank you so much.
James
--- Andreas Tønnesen <(spam-protected)> wrote:
>
> the plugin uses MD5 bu default. To use OpenSSL SHA-1
> you must do:
> make USE_OPENSSL=1
>
> It does not support any other algorithms then SHA-1
> and MD5.
>
> - Andreas
>
> (spam-protected) wrote:
> > Thanks for help.
> >
> > I have some questions in secure plugin.
> >
> > By default, does it use /usr/include/openssl/sha.h
> for
> > the encryption of digital signature?
> > If sha.h is not found, then it will use
> > /usr/include/md5. Am I right?
> >
> > If I want to use md5 instead of sha, do I just
> rename
> > the sha.h to sha.h.bak? So it will use md5?
> >
> > Is it possible to use other algorithms, e.g.
> RIPEMD160
> > and SHA256 by modifying the source code?
> >
> > Thanks again.
> >
> > James
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > Plan great trips with Yahoo! Travel: Now over
> 17,000 guides!
> > http://travel.yahoo.com/p-travelguide
> > _______________________________________________
> > olsr-users mailing list
> > (spam-protected)
> > https://www.olsr.org/mailman/listinfo/olsr-users
>
> --
> Andreas Tønnesen
> http://www.olsr.org
> _______________________________________________
> olsr-users mailing list
> (spam-protected)
> https://www.olsr.org/mailman/listinfo/olsr-users
>
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Message: 8
Date: Tue, 19 Apr 2005 22:16:47 +0200
From: Henrion Benjamin <(spam-protected)>
Subject: Re: [OLSR-users] Double radio mesh test
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=us-ascii
dennis khoo <(spam-protected)> [050419]:
>
> > Is it possible to do the same with OLSR? Maybe OLSR
> > running on 2
> > different wireless interfaces on 2 different
> > channels (like 1 and 11)?
> >
> > Do you think it might be possible?
> >
>
> Yes, we routinely run this config on a board with 2
> radios. Check out
> http://www.olsr.org/pipermail/olsr-users/2005-January/000500.html
Do you use omni-directionnal antennas or directional?
Does B and D see each other in *both* channels?
--
Benjamin Henrion <(spam-protected)>
http://bh.udev.org
<< Software patents are a Temptation >>>
<< Temptation leads to Stagnation >>>
<< Stagnation leads to the Dark Side. >>>
------------------------------
Message: 9
Date: Tue, 19 Apr 2005 14:22:45 -0700 (PDT)
From: dennis khoo <(spam-protected)>
Subject: Re: [OLSR-users] Double radio mesh test
To: OLSR discussion and development <(spam-protected)>
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset=us-ascii
> > > Is it possible to do the same with OLSR? Maybe
> OLSR
> > > running on 2
> > > different wireless interfaces on 2 different
> > > channels (like 1 and 11)?
> > >
> > > Do you think it might be possible?
> > >
> >
> > Yes, we routinely run this config on a board with
> 2
> > radios. Check out
> >
>
http://www.olsr.org/pipermail/olsr-users/2005-January/000500.html
>
> Do you use omni-directionnal antennas or
> directional?
>
> Does B and D see each other in *both* channels?
>
We tried the config in a small space using omni
antennas(since we only have those lying around) to see
if OSLR can handle the particulary scenario and test
performance. So yes B and D do see each other in both
channels, along with 3 or 4 other APs around the
neighborhood so I would imagine directional antennas
would be better suited. (Now if only I can get my
hands on those.) Please post back your results and
findings if you do go ahead with it.
The nice thing is since everything is redundant, if
one path gets too noisy(from all the other AP radios)
or goes down, OSLR switches to the other path within a
few seconds so our http downloads actually do not get
terminated. I imagine we will probably try >2 radios
per node once we can scrounge up more cards.
Hopes this helps
dennis
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