How to PXE boot with IPv6 SLAAC?

[KasperK]

Hi

How do I set the options for stateless ipv6 dhcp pool, if you want to use pxe boot eg. to a Windows deployment server FD00:1:100:100::13 ? (I got full ipv6 connection between client and server subnet)

This is my configuration so far:

ipv6 dhcp pool OPTIONS
dns-server FD00:1:100:100::2
dns-server FD00:1:100:100::3
domain-name test.local
!

interface Vlan2
ipv6 address FE80:0:0:200::1 link-local
ipv6 address FD00:0:0:200::1/64
ipv6 nd other-config-flag
ipv6 dhcp server OPTIONS rapid-commit

Sometheing tells me that I sould use vendor-specific and some suboptions in the dhcp pool some how

Regards

Kasper

[Harold Ritter]

Here's a document that can help you with that.

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/166/b_166_programmability_cg/ipxe.html

Regards,

[KasperK]

Hi Harold

Thanks for your reply

It looks like the iPXE only is an option for IOS XE devices, which means that unfortunately we cannot use this option with eg. C6800 platform.

I was hoping to find a working solution by adding this in the IPv6 pool: (By IANA, the nr. 311 is the Microsoft vendor) 

vendor-specific 311

 suboption 1 address FD00:1:100:100::13

Then the pool looks like this:

ipv6 dhcp pool OPTIONS
dns-server FD00:1:100:100::2
dns-server FD00:1:100:100::3
domain-name test.local

vendor-specific 311

 suboption 1 address FD00:0:100:100::13

But nothing happens, I ran a DHCP debug on the switch where the IPv6 pool is located, and it seems that the client is looking for some other vendor-class 16 when trying to pxe boot.

Feb 25 09:24:21.100: IPv6 DHCP: Received SOLICIT from FE80::FACA:B8FF:FE37:A21D on Vlan2
Feb 25 09:24:21.100: IPv6 DHCP: Option UNKNOWN(62) is not processed
Feb 25 09:24:21.100: IPv6 DHCP: Option UNKNOWN(61) is not processed
Feb 25 09:24:21.100: IPv6 DHCP: Option VENDOR-CLASS(16) is not processed
Feb 25 09:24:21.100: IPv6 DHCP: Using interface pool OPTIONS
Feb 25 09:24:21.100: IPv6 DHCP: Creating binding for FE80::FACA:B8FF:FE37:A21D in pool OPTIONS
Feb 25 09:24:21.100: IPv6 DHCP: Binding for IA_NA B7B8FFFE not found
Feb 25 09:24:21.100: IPv6 DHCP: Allocating IA_NA B7B8FFFE in binding for FE80::FACA:B8FF:FE37:A21D