Public bug reported:
DHCP client is sending discover with Unicast type request for the offer, in this configuration of IB to ETH through a relay we need the type to be broadcast. The issue is that when using dhclient from the client on Ubuntu (and only on Ubuntu) with MOFED or inbox driver, we see that that DHCP server offers in unicast instead of broadcast. It seems there is no way to correct this from the client side using dhclient configuration file. this issue exist even when we use always-broadcast statement in configuration file. in other vendors we see that discover request type is broadcast. attached pcap files from working (other vendor) and not working (Ubuntu) clients. DHCP CLIENT (IPoIB) Ubuntu 14.04 kernel 3.13.0-74 Mellanox OFED 3.1-1.0.3 or inbox driver isc-dhcp-client 4.2.4-7ubuntu12.3 ** Affects: isc-dhcp (Ubuntu) Importance: Undecided Status: New ** Tags: trusty ** Attachment added: "Ubuntu pcap file" https://bugs.launchpad.net/bugs/1529815/+attachment/4541675/+files/ubuntu_inbox.pcap -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/1529815 Title: InfiniBand DHCP flow with PRA and DHCP relay not working Status in isc-dhcp package in Ubuntu: New Bug description: DHCP client is sending discover with Unicast type request for the offer, in this configuration of IB to ETH through a relay we need the type to be broadcast. The issue is that when using dhclient from the client on Ubuntu (and only on Ubuntu) with MOFED or inbox driver, we see that that DHCP server offers in unicast instead of broadcast. It seems there is no way to correct this from the client side using dhclient configuration file. this issue exist even when we use always-broadcast statement in configuration file. in other vendors we see that discover request type is broadcast. attached pcap files from working (other vendor) and not working (Ubuntu) clients. DHCP CLIENT (IPoIB) Ubuntu 14.04 kernel 3.13.0-74 Mellanox OFED 3.1-1.0.3 or inbox driver isc-dhcp-client 4.2.4-7ubuntu12.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1529815/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp