[ipxe-devel] [ipxe/ipxe] Handle DHCPNAK by going back to discover state. (#66)

[Blake Rouse]

Adds support for handling a DHCPNAK when performing DHCP. It is possible that once iPXE has picked the IP address and sends the request that the DHCP server response with a DHCPNAK instead of a DHCPACK. According to RFC the DHCP client should start back at discover.

This was identified here: https://bugs.launchpad.net/bugs/1707999

The patch has been tested in Ubuntu 16.04 and verified to work.
You can view, comment on, or merge this pull request online at:

  https://github.com/ipxe/ipxe/pull/66

-- Commit Summary --

  * Handle DHCPNAK by going back to discover state.

-- File Changes --

    M src/net/udp/dhcp.c (13)

-- Patch Links --

https://github.com/ipxe/ipxe/pull/66.patch
https://github.com/ipxe/ipxe/pull/66.diff

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