iPXE http file transfer stuck mid way

[eric]

I am seeing http transfer get stuck mid way through the file transfer.

The output below is with DEBUG=ipv6,dhcpv6,icmpv6. In this case, the transfer gets stuck indefinitely at 67%.

It seems that the IP address may have changed. Please note the line:
"IPv6 net0 has address 2001:1851:c623:1:256:2bff:feac:7b18/64 router fe80::a236:9fff:fe74:cfff"

When the transfer starts, net0 has address 2001:1851:c623:1::7c/64

What might be causing this behavior?


iPXE 1.0.0+ (e291) -- Open Source Network Boot Firmware -- http://ipxe.org
Features: DNS HTTP TFTP EFI ISO9660 NBI Menu

net0: 00:56:2b:ac:7b:18 using i350 on PCI17:00.0 (open)
[Link:up, TX:0 TXE:0 RX:0 RXE:0]
Configuring (net0 00:56:2b:ac:7b:18)...IPv6 net0 has prefix 2001:1851:c623:1::/64
IPv6 net0 has prefix 2001:1851:c623:1::/64 router fe80::a236:9fff:fe74:cfff
IPv6 net0 has address 2001:1851:c623:1:256:2bff:feac:7b18/64 router fe80::a236:9fff:fe74:cfff
DHCPv6 net0 create DUID-EN: 150994944, DUID-ID: FOC2052R15X
DHCPv6 net0 has XID 31a80e
DHCPv6 net0 entering SOLICIT state
DHCPv6 Vendor classs string len 11, Vendor class len:21
DHCPv6 Vendor classs string NCS--------, EN=150994944
DHCPv6 net0 received ADVERTISE from fe80::a236:9fff:fe74:cfff
DHCPv6 net0 received ADVERTISE is for 2001:1851:c623:1::7c
DHCPv6 net0 entering REQUEST state
DHCPv6 Vendor classs string len 11, Vendor class len:21
DHCPv6 Vendor classs string NCS--------, EN=150994944
DHCPv6 net0 received REPLY from fe80::a236:9fff:fe74:cfff
DHCPv6 net0 received REPLY is for 2001:1851:c623:1::7c
IPv6 net0 has address 2001:1851:c623:1::7c/64 router fe80::a236:9fff:fe74:cfff
DHCPv6 net0 complete
..IPv6 discarding non-local unicast packet for 2001:1851:c623:1:256:2bff:feaa:9972
. ok
net0: 3.3.3.116/255.255.255.0 gw 3.3.3.2
net0: fe80::256:2bff:feac:7b18/64
net0: 2001:1851:c623:1::7c/64 gw fe80::a236:9fff:fe74:cfff
net1: fe80::256:2bff:feac:7b19/64 (inaccessible)
net2: fe80::2a0:c9ff:fe00:0/64 (inaccessible)
Filename: http://[2001:1851:c623:1::1]/PE1/ncs5500-thinxr.iso
http://[2001:1851:c623:1::1]/PE1/image.iso...IPv6 could not transmit packet via net0: Error 0x06376086 (http://ipxe.org/06376086)
IPv6 discarding non-local unicast packet for 2001:1851:c623:1:2a2:eeff:fe41:4dc8
IPv6 discarding non-local unicast packet for 2001:1851:c623:1::21
31%IPv6 discarding non-local unicast packet for 2001:1851:c623:1::150
41%IPv6 discarding non-local unicast packet for 2001:1851:c623:1:2a2:eeff:fe9f:d9f6
43%IPv6 discarding non-local unicast packet for 2001:1851:c623:1::122
67%IPv6 net0 has address 2001:1851:c623:1:256:2bff:feac:7b18/64 router fe80::a236:9fff:fe74:cfff
IPv6 discarding non-local unicast packet for 2001:1851:c623:1::7c
IPv6 discarding non-local unicast packet for 2001:1851:c623:1::7c
IPv6 discarding non-local unicast packet for 2001:1851:c623:1:f126:4283:b295:687
IPv6 discarding non-local unicast packet for 2001:1851:c623:1:218b:1eb6:68f8:c149
67%IPv6 discarding non-local unicast packet for 2001:1851:c623:1::7c
67%IPv6 discarding non-local unicast packet for 2001:1851:c623:1::1ab
IPv6 discarding non-local unicast packet for 2001:1851:c623:1::1ab
ICMPv6 unrecognised type 133
IPv6 received packet rejected by stack: Operation not supported (http://ipxe.org/3c046083)
67%IPv6 discarding non-local unicast packet for 2001:1851:c623:1::7c
IPv6 discarding non-local unicast packet for 2001:1851:c623:1:262:ecff:fe1c:a4c0
IPv6 discarding non-local unicast packet for 2001:1851:c623:1::122
IPv6 discarding non-local unicast packet for 2001:1851:c623:1:f126:4283:b295:687
67%IPv6 discarding non-local unicast packet for fe80::2cc:fcff:feba:47d6
67%IPv6 discarding non-local unicast packet for 2001:1851:c623:1:2a2:eeff:fe41:4d80