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List: dhcp-users
Subject: query in relay behavior
From: <ameen.shajahan () wipro ! com>
Date: 2013-03-21 15:55:41
Message-ID: CB6376D06BFCD24796ACE762C045D73B74B2312A () CHN-SNR-MBX-7 ! wipro ! com
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Hi All,
Please find the below setup of DHCP v4 relay and please let me know the beha=
vior happens in below test cases.
DHCP Server------------------------------------Relay------------------------=
----------Cisco switch-----------------------------PC
eth0-10.46.185.77 eth0- 30.30.30.32 =
access port trunk port
eth0.1- 30.30.30=
.31 vlan1
Running relay like below use cases.
Use case 1 :
--------------
./dhcrelay -4 -d -i eth0.1 10.46.185.77 During this use case , I supplied=
ipconfig /renew from Windows PC . But no message reaches relay .
=
I would like to know why it's happening.
Use case 2 :
--------------
./dhcrelay -4 -d -i eth0 10.46.185.77 During this use case , I supplied i=
pconfig /renew from Windows PC . Forwarded BOOTRequest message comes in rela=
y .
I c=
an able to see some messages.
Why client is not broadcasting message to virtual interface(eth0.1) . Why cl=
ient looking for real interface(eth0).
Please let me know why it is so.
Thanks,
Ameen
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<p class="MsoNormal"><span lang="EN-US">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Please find the below setup of DHCP v4 relay \
and please let me know the behavior happens in below test \
cases.<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; \
<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US">DHCP \
Server------------------------------------Relay----------------------------------Cisco \
switch-----------------------------PC<o:p></o:p></span></p> <p \
class="MsoNormal"><span \
lang="EN-US">eth0-10.46.185.77 &n \
bsp; \
eth0- \
30.30.30.32 &nb \
sp; \
access port trunk \
port
<o:p></o:p></span></p>
<p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; \
\
eth0.1- 30.30.30.31 \
\
vlan1<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US">Running relay like below use \
cases.<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US">Use \
case 1 :<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US">--------------<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US" style="color:red">./dhcrelay -4 -d -i </span> <span lang="EN-US" \
style="color:#00B050">eth0.1 </span><span lang="EN-US" \
style="color:red">10.46.185.77 </span><span lang="EN-US">During this use \
case , I supplied ipconfig /renew from Windows PC . But no message reaches \
relay .<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; &nb \
sp;   \
; \
I would \
like to know why it’s happening.<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US">Use case 2 :<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US">--------------<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US" style="color:red">./dhcrelay -4 -d -i </span> \
<span lang="EN-US" style="color:#00B050">eth0</span><span lang="EN-US" \
style="color:red"> 10.46.185.77 </span><span lang="EN-US">During this use \
case , I supplied ipconfig /renew from Windows PC . Forwarded BOOTRequest \
message comes in relay .<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; &nb \
sp;   \
; \
I can able to see some \
messages.<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US">Why \
client is not broadcasting message to virtual interface(eth0.1) . Why client looking \
for real interface(eth0).<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US">Please let me know why it is so.<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US">Thanks,<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US">Ameen<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> </div>
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"Palatino Linotype","serif";color:green'> Please do not print this email unless it is \
absolutely necessary. </span></strong><span \
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p> The information contained in this electronic message and any attachments to this \
message are intended for the exclusive use of the addressee(s) and may contain \
proprietary, confidential or privileged information. If you are not the intended \
recipient, you should not disseminate, distribute or copy this e-mail. Please notify \
the sender immediately and destroy all copies of this message and any attachments. \
</p>
<p>WARNING: Computer viruses can be transmitted via email. The recipient should check \
this email and any attachments for the presence of viruses. The company accepts no \
liability for any damage caused by any virus transmitted by this email. </p> <p>
www.wipro.com
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