Some endpoints will boot into iPXE while others fail to boot into iPXE and get error: pxe-e21
There is no ACK from DHCP message after the offer message as seen here:
Also the you will see in the wireshark this capture output:
Magic cookie: DHCP Option: (53) DHCP Message Type (Discover) Length: 1 DHCP: Discover (1) Option: (57) Maximum DHCP Message Size Length: 2 Maximum DHCP Message Size: 1472 Option: (93) Client System Architecture Length: 2 Client System Architecture: EFI x64 (7) Option: (94) Client Network Device Interface Length: 3 Major Version: 3 Minor Version: 10 Option: (60) Vendor class identifier Length: 32 Vendor class identifier: PXEClient:Arch:00007:UNDI:003010 Option: (77) User Class Information Length: 4 User Class Data (Text): iPXE [Expert Info (Note/Protocol): Non standard compliant option data] [Non standard compliant option data] [Severity level: Note] [Group: Protocol] Option: (55) Parameter Request List Length: 23 Parameter Request List Item: (1) Subnet Mask Parameter Request List Item: (3) Router Parameter Request List Item: (6) Domain Name Server Parameter Request List Item: (7) Log Server Parameter Request List Item: (12) Host Name Parameter Request List Item: (15) Domain Name Parameter Request List Item: (17) Root Path Parameter Request List Item: (26) Interface MTU Parameter Request List Item: (43) Vendor-Specific Information Parameter Request List Item: (60) Vendor class identifier Parameter Request List Item: (66) TFTP Server Name Parameter Request List Item: (67) Bootfile name Parameter Request List Item: (119) Domain Search Parameter Request List Item: (128) DOCSIS full security server IP [TODO] Parameter Request List Item: (129) PXE - undefined (vendor specific) Parameter Request List Item: (130) PXE - undefined (vendor specific) Parameter Request List Item: (131) PXE - undefined (vendor specific) Parameter Request List Item: (132) PXE - undefined (vendor specific) Parameter Request List Item: (133) PXE - undefined (vendor specific) Parameter Request List Item: (134) PXE - undefined (vendor specific) Parameter Request List Item: (135) PXE - undefined (vendor specific) Parameter Request List Item: (175) Etherboot Parameter Request List Item: (203) Unassigned
GSS 3.3 RU10 and lower
Issues have been seen where NIC firmware does not support iPXE 1.0.0.
This issue can be seen in wireshark where the DHCP does not give an ACK message.
Upgrade to GSS RU11.