[syslinux] tftp problems with VIA EPIA-M board

[H. Peter Anvin]

Hugo Mills wrote:
> On Tue, Jun 03, 2003 at 03:23:29PM -0700, H. Peter Anvin wrote:
> 
>>Hugo Mills wrote:
>>
>>>   To abort on receipt of an option acknowledgement? How does it
>>>expect to continue? Should it just carry on regardless after sending
>>>the abort packet back?
>>
>>No, it should start a new transfer at that point.
> 
> 
>    OK. I assumed (wrongly) that the error code indicated the
> problem. I've let the client machine carry on trying to boot for a
> while, and this is the complete sequence of packets I see:
> 
> Source         Destination         Protocol     Info
> 0.0.0.0:68     255.255.255.255:67  DHCP         DHCP discover
> 10.0.0.5:67    255.255.255.255:68  DHCP         DHCP offer
> 0.0.0.0:68     255.255.255.255:67  DHCP         DHCP request
> 10.0.0.5:67    255.255.255.255:68  DHCP         DHCP ACK
> (clientMAC)    (bcast)             ARP          Who has 10.0.0.5, tell 10.0.0.3
> (serverMAC)    (clientMAC)         ARP          10.0.0.5 is at [MAC]
> 10.0.0.3:2070  10.0.0.5:69         TFTP         Read request: /tftpboot/pxelinux.0
> 10.0.0.5:32875 10.0.0.3:2070       TFTP         Option acknowledgement
> 10.0.0.3:2070  10.0.0.5:32875      TFTP         Error code (5), not defined (0), TFTP aborted
> 10.0.0.3       10.0.0.5            IGMP         V2 membership report, multicast address 10.0.0.5
> (serverMAC)    (clientMAC)         ARP          Who has 10.0.0.3? Tell 10.0.0.5
> (clientMAC)    (serverMAC)         ARP          10.0.0.3 is at [MAC]
> 10.0.0.3       10.0.0.5            IGMP         V2 membership report, mcast addr 10.0.0.5
> 10.0.0.3:17664 10.0.05:17664       TFTP         Read request: /tftpboot/pxelinux.0
> 10.0.0.5       10.0.0.3            ICMP         Destination unreachable (10.0.0.5:17664)
> 

WHOA... looks like your PXE bios is trying to boot from 10.0.0.5 as if
it was a multicast address, and then boot from port 17664; perhaps it's
expecting an MTFTP server there.  That one is a new one for me...
	
	-hpa