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<p class="MsoNormal"><span lang="EN-US">I do see a crazy behavior<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">Start relay with <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> dhcrelay -4 -d -iu br_TB104_TMN -id br_TB104_DUT 10.160.50.50<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">on the downstream interface I see<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.60.52 10.160.50.50 DHCP 346 DHCP Request - Transaction ID 0x42cc161a<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.50.50 10.160.60.52 DHCP 346 DHCP ACK - Transaction ID 0x42cc161a<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.60.49 10.160.60.52 DHCP 346 DHCP ACK - Transaction ID 0x42cc161a<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">on the upstream interface I see <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.60.52 10.160.50.50 DHCP 346 DHCP Request - Transaction ID 0x42cc161a
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.50.50 10.160.60.52 DHCP 346 DHCP ACK - Transaction ID 0x42cc161a<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.50.49 10.160.50.50 DHCP 346 DHCP Request - Transaction ID 0x42cc161a<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.50.50 10.160.60.49 DHCP 346 DHCP ACK - Transaction ID 0x42cc161a<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10.160.50.49 255.255.255.255 DHCP 346 DHCP NAK - Transaction ID 0x42cc161a<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">It means first the dhcp request goes through the system and the answer handed over backward as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But relay agent ip is not filled in the frame<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">But than the relay agent sends out a further unicast with his own ip as source and with the relay agent ip set, towards the server . client mac address is still correct.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The response is than forwarded to the client with the source ip from the relay agent.<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">And finally I don’t now why a NACK is send from the relay agent towards the dhcp server as broadcast without any NACK from a client.<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">Any suggestions ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE">Mit freundlichen Grüßen / With kind regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE">Immo Wetzel<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE">ADTRAN GmbH<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE">Siemensallee 1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE">17489 Greifswald<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE">Germany<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;mso-fareast-language:DE">Phone: +49 3834 5352 823<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;mso-fareast-language:DE">Mobile: +49 151 147 29 225<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;mso-fareast-language:DE">Skype: immo_wetzel_adtran<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas;mso-fareast-language:DE"><a href="mailto:Immo.Wetzel@Adtran.com"><span lang="DE" style="font-family:"Times New Roman","serif";color:blue">Immo.Wetzel@Adtran.com</span></a></span><span style="font-size:10.0pt;font-family:Consolas;mso-fareast-language:DE">
PGP-Fingerprint: 7313 7E88 4E19 AACF 45E9 E74D EFF7 0480 F4CF 6426<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas;mso-fareast-language:DE"><a href="http://www.adtran.com/"><span lang="DE" style="font-family:"Times New Roman","serif";color:blue">http://www.adtran.com</span></a></span><span style="font-size:10.0pt;font-family:Consolas;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:Consolas;color:#7F7F7F;mso-fareast-language:DE">Sitz der Gesellschaft: Berlin / Registered office: Berlin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:Consolas;color:#7F7F7F;mso-fareast-language:DE">Registergericht: Berlin / Commercial registry: Amtsgericht Charlottenburg, HRB 135656 B<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:Consolas;color:#7F7F7F;mso-fareast-language:DE">Geschäftsführung / Managing Directors: Roger Shannon, James D. Wilson, Jr., Dr. Eduard Scheiterer</span><span style="mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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