[ipxe-devel] DNS resolution runs into timeout

Michael Brown mbrown at fensystems.co.uk
Fri Dec 6 13:32:32 UTC 2013

On 06/12/13 13:12, Sven Dreyer wrote:
> Sure, see attached "results.png".
> The DNS6 address (2002:4db7:c08:1::1) is correct, since I need to use
> 6to4. DNS is provided by a Debian wheezy system with bind9.

It looks as though you have a couple of issues with the network's IPv6 

- RA and DHCPv6 seem to be advertising different DNS servers (check 
"show net0.ndp/dns6" and "show net0.dhcpv6/dns6")

- neither RA nor DHCPv6 is providing a global IPv6 address for iPXE

The upshot is that your RA/DHCPv6 configuration is providing iPXE with 
an IPv6 address for the DNS server, but is not providing iPXE with a 
usable IPv6 address from which to reach the DNS server.

If this isn't enough information to resolve the problem, then could you 
build with DEBUG=ndp,dhcpv6 and provide the output from "ifconf -c ipv6"?



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