touch-packages team mailing list archive

[Talat Batheesh <1529815@xxxxxxxxxxxxxxxxxx>]

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

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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

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