Problem with External Net and Legacy BIOS

[aalexander]

I have a problem when i try to boot PXE from Old PC with Legacy BIOS. I take this error message (image). 
I have used Extrernal Net settings because iVentoy server and the third-party DHCP Server are located in different LANs/VLAN.
I would like to inform you that if I use PC with UEFI all work ok. Could you help me?

[longpanda]

What bootfile name options did you config in the third-part dhcp server?
For UEFI mode you must set the bootfile name to iventoy_loader_16000_uefi and for LegacyBIOS you must set the bootfile name to iventoy_loader_16000_bios

[aalexander]

What bootfile name options did you config in the third-part dhcp server?
For UEFI mode you must set the bootfile name to iventoy_loader_16000_uefi  and for LegacyBIOS you must set the bootfile name to iventoy_loader_16000_bios

Thanks for your answer. I sent you image with my settings in dhcp-server


Log for iVentoy

2023/10/22 11:14:28.083 [TFTP] Parse tftp option(tsize,0)
2023/10/22 11:14:28.083 [TFTP] TFTP RRQ client 192.0.1.2:2070 download <iventoy_loader_16000_bios> start ...
2023/10/22 11:14:28.083 [TFTP] DHCP ExternalNet client 192.0.1.2 should use loader ipxe.bios.0
2023/10/22 11:14:28.083 [TFTP] Start send file iventoy_loader_16000_bios to 192.0.1.2:2070 with blksize 512, has oack 1
2023/10/22 11:14:28.084 [TFTP] Recv an ERROR opcode pkt from client 192.0.1.2:2070.
2023/10/22 11:14:28.084 [TFTP] Parse tftp option(blksize,1456)
2023/10/22 11:14:28.084 [TFTP] TFTP RRQ client 192.0.1.2:2071 download <iventoy_loader_16000_bios> start ...
2023/10/22 11:14:28.084 [TFTP] DHCP ExternalNet client 192.0.1.2 should use loader ipxe.bios.0
2023/10/22 11:14:28.084 [TFTP] Start send file iventoy_loader_16000_bios to 192.0.1.2:2071 with blksize 1456, has oack 1
2023/10/22 11:14:28.094 [TFTP] Finished send file to 192.0.1.2:2071 with blksize 1456 blks 92