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2 questions in IPV6 regarding to DHCP with windows server 2012

Dr.X
Level 2
Level 2

Hu Guys ,

 

i have 1 questions

 

now i had setup a netwoek with ipv6 dhcp server 2012 and there is windows 7 clients pc with dhcp enabled for ipv6

now there is no router in the network.

 

i can see that the client can get the ip from dhcp but it get only the prefix /64 and the /64 of the host is given tho the pc with a method i dont know about it.......i mean its not eui-64

also the pc can get dns ip address from the dhcp server ...but agian there is no router and no default gateway for that pc.

is that issues that occured has a relation to that there is no router in the network ?

 

how  i force the pc to use the /64 of the host id from the dhc server ??

i can see in the dhcp logs , that a pc  got an ip from server

 

but why its not from the pool ??

 

i mean , my pool is

2001:a:b:c:0000000000000000

to

2001:a:b:c:fffffffffffffffffffffffffffffffff

 

 

the problem is , 

the cliet get an ip like 

2001:a:b:c:abcb:aaaa:bbbb:4fbc

 

if i look at 

abcb:aaaa:bbbb:4fbc

 

it has no relation to mac address 
??!!!

 

 

any help ?

 

do i need cisco router to fix this issue ?

 

cheers

2 Replies 2

Cisco Freak
Level 4
Level 4

I think its the temporary address generated by Windows.

Please use the below commands to disable it:

 

netsh interface ipv6 set privacy state=disabled store=active
netsh interface ipv6 set privacy state=disabled store=persistent
netsh interface ipv6 set global randomizeidentifiers=disabled store=active
netsh interface ipv6 set global randomizeidentifiers=disabled store=persistent

https://knowledge.zomers.eu/misc/Pages/How-to-disable-temporary-IPv6-address-allocation-at-a-Windows-PC.aspx

 

CF

 

 

dont think it temporary becasue when i do \ipconfig /all

 

i dont see temporary beside the address !!!!

also i have another problem , i cant ping the server and server cant ping me !!

really weird !