Provisioning a host using generic image fails with error Failed to chainload from any network interface in Red Hat Satellite 6

Issue

• Failed to provision a host while booting via Generic Image where the host boots up with iPXE firmware but fails to chainload the iPXE script from Satellite server.

• iPXE firmware always queries to wrong satellite server for chainloading the next stage.

  iPXE 1.0.0+ (4e85b27) -- Open Source Network Boot Firmware -- http://ipxe.org
  Features: DNS HTTP iSCSI TFTP SRP AoE ELF MBOOT PXE bzImage Menu PXEXT
  Foreman Bootdisk: Generic image
  net0 is a vmxnet3 with MAC 00:XX:XX:XX:XX:XX
  Configuring (net0 00:XX:XX:XX:XX:XX)........................................ ok
  http://old-satellite.example.com/unattended/iPXE?&mac=00%3AXX%3AXX%3AXX%3AXX%3A
  XX... No Such file or directory (http://ipxe.org/2d0c613b)
  Failed to chainload from any network interface
  

• Once chainloading completes the host is unable to fetch the kickstart and treeinfo file from Satellite server.