From: Pierre-Alex (paguanel@hotmail.com)
Date: Thu Jun 15 2006 - 07:09:10 ART
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--------------
Koen,
Just so you know, I was not able to test multicast helper-map using DNS
broadcast as a source
of broadcast traffic. Using a router running RIP in version 1 did not cut
it either.
Router generating DNS / RIPv1
(source)--F0/0--R2----multicast----r3-e0/0--R4(Receiver)
I had to use a server with a traffic generator as below:
Server(source)--F0/0--R2----multicast----r3-e0/0--R4(Receiver)
My problem remains: on the exam I will not have a way to test that the
multicast-helper map is working as expected .
Pierre-Alex
----- Original Message -----
From: "Pierre-Alex" <paguanel@hotmail.com>
To: "Koen Zeilstra" <koen@koenzeilstra.com>
Cc: <ccielab@groupstudy.com>
Sent: Thursday, June 15, 2006 12:03 PM
Subject: Re: Generating UDP broadcast from router using RTR possible?
> Koen Just so you know, I was not able to test multicast helper-map using
> DNS broadcast as a source
> of broadcast traffic. Using a router running RIP in version 1
>
>
>
> ----- Original Message -----
> From: "Koen Zeilstra" <koen@koenzeilstra.com>
> To: "Pierre-Alex" <paguanel@hotmail.com>
> Cc: <ccielab@groupstudy.com>
> Sent: Thursday, June 15, 2006 10:31 AM
> Subject: Re: Generating UDP broadcast from router using RTR possible?
>
>
>> Piere-Alex,
>>
>> With help of a blind dns lookup you are able to do at lease UDP broadcast
>> to port 53.
>>
>> Router(conf)# ip domain.lookup
>> Router# cisco.com
>> Translating "cisco.com"...domain server (255.255.255.255)
>>
>>
>> kind regards,
>>
>> Koen Zeilstra
>>
>> -----------------------
>> Forgetfulness, n.:
>> A gift of God bestowed upon debtors in compensation for their
>> destitution of conscience.
>>
>> On Thu, 15 Jun 2006, Pierre-Alex wrote:
>>
>> | Is it possible to trick the router into sending UDP broadcasts via rtr?
>> |
>> | I am getting "encapsulation failure" when running the following:
>> |
>> | rtr 2
>> | type udpEcho dest-ipaddr 10.1.2.255 dest-port 65300
>> | request-data-size 1500
>> | timeout 50
>> | frequency 1
>> | rtr schedule 2 life forever start-time now
>> |
>> |
>> | It will greatly help me in testing various things.
>> |
>> | Thanks
>> |
>> | Also, I have noticed that my destination port was not respected (but
>> this is a
>> | minor thing).
>> |
>> |
>> | *Mar 1 01:24:07.393: IP: s=10.1.2.1 (local), d=10.1.2.255
>> (Ethernet0/0), len
>> | 80, encapsulation
>> | failed
>> | *Mar 1 01:24:07.393: UDP src=50659, dst=1967
>> | r1#
>> |
>> | Pierre-Alex
>> |
>> | _______________________________________________________________________
>> | Subscription information may be found at:
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>> |
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