pxe + nfs + microsoft dhcp

[Daniel Braniss]

> pacija wrote:
> 
> ----- Original Message -----
> > Dear list readers,
> > 
> > I am having a problem with pxe loader on FreeBSD 9.0 i386 release. No
> > matter what value I put for DHCP option 017 (Root Path) in Microsoft
> > DHCP server, pxe always sets root path:
> > pxe_open: server path: /
> > 
> > I've read src/sys/boot/i386/libi386/pxe.c as instructed in handbook,
> > and
> > i learned there that root path is a failover value which gets set if
> > no
> > valid value is supplied by DHCP server. At first i thought that
> > Microsoft DHCP does not send it but i confirmed with windump it does:
> > 
> > --
> > 15:46:49.505748 IP (tos 0x0, ttl 128, id 6066, offset 0, flags [none],
> > proto: UDP
> > (17), length: 392) dhcp.domain.tld.67 > 255.255.255.255.68: [bad udp
> > cksum 4537!]
> > BOOTP/DHCP, Reply, length 364, xid 0xdcdb5309, Flags [ none ] (0x0000)
> > Your-IP 192.168.218.32
> > Server-IP dhcp.domain.tld
> > Client-Ethernet-Address 00:19:db:db:53:09 (oui Unknown)
> > file "FreeBSD/install/boot/pxeboot"
> > Vendor-rfc1048 Extensions
> > Magic Cookie 0x63825363
> > DHCP-Message Option 53, length 1: Offer
> > Subnet-Mask Option 1, length 4: 255.255.255.0
> > RN Option 58, length 4: 345600
> > RB Option 59, length 4: 604800
> > Lease-Time Option 51, length 4: 691200
> > Server-ID Option 54, length 4: dhcp.domain.tld
> > Default-Gateway Option 3, length 4: gate.domain.tld
> > Domain-Name-Server Option 6, length 4: dhcp.domain.tld
> > Domain-Name Option 15, length 1: "^@"
> > RP Option 17, length 42:
> > "192.168.218.32:/b/tftpboot/FreeBSD/install/^@"
> > BF Option 67, length 29: "FreeBSD/install/boot/pxeboot^@"
> What about getting rid of the "^@" characters at the end of
> the strings?

the ^@ seems to have been added by windump, but check this out:
the length of the  root-path
	192.168.218.32:/b/tftpboot/FreeBSD/install/
is 43!, not 42 as shown, and the ^@ (NULL) is the 44th!
on the other hand, 
	FreeBSD/install/boot/pxeboot
is 28! 

can you make available the raw data (cab) of the entire transaction, including
the request for the boot files?

danny