Jumpstart woes

Hey,

I have been battling with jumpstart for the past few days. Interface nxge0 is set on a vlan:

nxge0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 0.0.0.0 netmask ff000000
ether 0:21:28:3c:a0:6
nxge998000: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 7
inet 63.69.69.80 netmask ffffff00 broadcast 63.69.69.255
ether 0:21:28:3c:a0:6
nxge999000: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 6
inet 192.168.255.39 netmask ffffff00 broadcast 192.168.255.255
ether 0:21:28:3c:a0:6

Jumpstarting over nxge999000 works fine. When I try over nxge998000 I get:

{0} ok boot net:63.69.69.80 -v - install

T5140, No Keyboard
Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
OpenBoot 4.33.6, 65312 MB memory available, Serial #93283168.
Ethernet address 0:21:28:8f:63:60, Host ID: 858f6360.

Boot device: /pci@500/pci@0/pci@8/network@0:63.69.69.80 File and args: -v - install
/pci@500/pci@0/pci@8/network@0: 1000 Mbps full duplex link up
Requesting Internet Address for 0:21:28:8f:63:60
Requesting Internet Address for 0:21:28:8f:63:60
Requesting Internet Address for 0:21:28:8f:63:60
Requesting Internet Address for 0:21:28:8f:63:60
Requesting Internet Address for 0:21:28:8f:63:60
Requesting Internet Address for 0:21:28:8f:63:60
/pci@500/pci@0/pci@8/network@0: 1000 Mbps full duplex link up
Using RARP/BOOTPARAMS...

Requesting Internet address for 0:21:28:8f:63:60
Internet address is: 63.69.69.194
panic - boot: Could not mount filesystem.
Program terminated
{0} ok

One the jumpstart server I am seeing quite a bit of activity. tftp seems to work but when it hands off to RPC everything goes bad:

ndcpzs37-998 -> ndctzs08 TFTP Data block 430 (512 bytes)
ndctzs08 -> ndcpzs37-998 TFTP Ack block 430
ndcpzs37-998 -> ndctzs08 TFTP Data block 431 (512 bytes)
ndctzs08 -> ndcpzs37-998 TFTP Ack block 431
ndcpzs37-998 -> ndctzs08 TFTP Data block 432 (168 bytes) (last block)
ndctzs08 -> ndcpzs37-998 TFTP Ack block 432
ndctzs08 -> BROADCAST BIFF R port=111
ndcpzs37-998 -> ndctzs08 BIFF C port=32832

I have tried rpcinfo from the client and it returns:

rpcinfo -u 63.69.69.80 nfs
program 100003 version 2 ready and waiting
program 100003 version 3 ready and waiting

showmount -e 63.69.69.80
export list for 63.69.69.80:
/export (everyone)
/export/home (everyone)

Not sure what else to try.

Any advice would be great.