Hi Nishant, Please find attachment for the pcap file.
Thanks, Raja -----Nishant Verma <vnish11 at gmail.com> wrote: ----- To: Raja Jayapal <raja.jayapal at tcs.com> From: Nishant Verma <[email protected]> Date: 08/13/2016 02:42AM Cc: "users at dpdk.org" <users at dpdk.org>, Nagaratna Patagar <nagaratna.patagar at tcs.com> Subject: Re: [dpdk-users] arp behaviour on dpdk Hi Raja, What i understand is that Br1(linux machine) is getting ARP request but not sending ARP Response? If this is the case, it means either packet is not liked by Br1 hence dropped or some how capture is not right. Can you share pcap file,? captured at Br1. On Thu, Aug 11, 2016 at 3:02 AM, Raja Jayapal <raja.jayapal at tcs.com> wrote: Hi All, I am running dpdk on KVM and would like to understand the arp behaviour on dpdk ports. The topology is as below. br0(192.168.100.10)----> vnet0 -----> dpdk(NIC1- e1000)------->dpdk(NIC2-e1000)------>vnet1----->br1(192.168.100.20) I am sending ARP packet from br0 using PackETH tool destined to br1. I have? edited the dpdk l2fwd code in such a way that , the destination is broadcast address(ffff). In br1 , i can see the arp resquest, but the host bridge is not responding for the arp request. In br1: ===== tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on br1, link-type EN10MB (Ethernet), capture size 65535 bytes 12:21:15.459667 ARP, Request who-has 192.168.100.20 (00:0a:e7:2c:44:2b (oui Unknown)) tell 192.168.100.10, length 46 12:21:15.651610 ARP, Request who-has 192.168.100.20 (00:0a:e7:2c:44:2b (oui Unknown)) tell 192.168.100.10, length 46 12:21:15.867692 ARP, Request who-has 192.168.100.20 (00:0a:e7:2c:44:2b (oui Unknown)) tell 192.168.100.10, length 46 In l2fwd application example also, the arp packets are getting received on the adjacent ports, but the arp reply has not been sent back from br1. Could you please let me know how to make the host(br1) to reply the arp request. Thanks, Raja =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you -- Rgds, Nishant
