https://jira.opendaylight.org This file is an XML representation of an issue en-us 8.20.10 820010 22-06-2022 https://jira.opendaylight.org/browse/NETVIRT-71 netvirt <p>In case we are using a router, therefor using the L3 pipline tables, when dhcp packet is received from the vxlan tunnel it goes from table 0, to table 36, to table 46 and there the flow has output to controller action.</p> <p>DHCP packets that doesn't received from vxlan tunnel, works fine.</p> <p>In case we don't use a router, a packet that is received from the vxlan tunnel skip the L3 pipelines tables, goes to the L2 pipeline tables and the DHCP feature works fine also.</p> <p>Operating System: All<br/> Platform: All</p> NETVIRT-71

DHCP packets from a tunnel interface goes up to controller when using L3 pipeline

Bug Resolved Done Vivekanandan Narasimhan Tomer Pearl Tue, 16 Aug 2016 11:17:36 +0000 Tue, 13 Sep 2016 11:21:45 +0000 Tue, 13 Sep 2016 11:21:45 +0000 Boron General 0 4 <p>VivekN,</p> <p>As per the bug, This issue happens when router is associated and DHCP packet received via VxLAN tunnel which is being sent from terminating service table (36) to Outbound NAPT table (46). <br/> But this packet should go to ELAN pipeline to reach DHCP server VM.<br/> Is it due to any clash between vpnId and elanTag (or) lportTag if subnet route feature is forwarding DHCP packet via ELAN Remote BC group ? I remember you have done similar fix earlier.<br/> Can you have a look whether it is a similar issue and any other issue in L3VPN pipeline ?</p> <p>Hi Tomer,</p> <p>Can you please ship us the flow dumps on the two servers ie.,</p> <p>1. Flow Dump from the server where the DHCP Service VM is running.<br/> 2. Flow Dump from the server where the source VM is present requesting for DHCP IP.</p> <p>Also Tomer, can you please confirm to us if this problem results in VMs unable to get IP Address from the DHCP Service VM and thence the issue is marked CRITICAL?</p> <p>OVS flows of the DHCP service machine</p> <p>Attachment dhcpflows.txt has been added with description: OVS flows of the DHCP server machine</p> <p>Attachment vmflows.txt has been added with description: OVS flows of the source vm requesting DHCP</p> <p>(In reply to Vivekanandan Narasimhan from comment #3)<br/> &gt; Also Tomer, can you please confirm to us if this problem results in VMs<br/> &gt; unable to get IP Address from the DHCP Service VM and thence the issue is<br/> &gt; marked CRITICAL?</p> <p>Yes, VMs unable to get IP.<br/> As a workaround I boot the vms before configuring the router.</p> <p>Fixed and verified by <a href="https://git.opendaylight.org/gerrit/#/c/44785/" class="external-link" target="_blank" rel="nofollow noopener">https://git.opendaylight.org/gerrit/#/c/44785/</a></p> Development External issue ID 6436 External issue URL Rank 0|i01pjb: