2
votes
1answer
146 views

How to assign multiple IPv6 addresses with DHCPv6 to a single interface?

This seems to be possible based on the spec rfc 3315 page 23: Excerpt: The configuration information in an IA consists of one or more IPv6 addresses along with the times T1 and T2 for the IA. See ...
0
votes
0answers
138 views

Configuring an IPv6 FreeBSD router works on boot only

I am trying the following: I am having a DHCPv6 server (machine A) with a /48 subnet which will delegate /64 subnets to other routers using the prefix delegation mechanism. One of these routers is a ...
1
vote
0answers
122 views

ISC DHCPD IPv6 for multiple interfaces

I want to assign multiple IPv6 to a server with multiple NIC. As IPv6 RFC defines, each server has a unique DUID that can have one of the 3 formats (LL, LLT or enterprise). And each NIC has an IAID. ...
1
vote
2answers
397 views

Linux server not receiving default IPv6 route over PPP link

I'm replacing a pfSense router in a remote office with a small linux device, running Debian. The router only has to handle very basic iptables / DHCP and VPN facilities. It is configured so that the ...
1
vote
1answer
679 views

Understanding DHCPv6 Stateful Solicit message

I have been reading the full RFC 3315 and trying to generated spoofed nodes to ask for IPv6 address. (only for practice) Right now, I have a Ubuntu with wide-dhcpv6-server (the DHCPv6 server), one ...
1
vote
1answer
129 views

DHCP IPv6 and vendor-encapsulated-options

I was using this option on ipv4 to send some information to the host. On my host lease I have something like: supersede vendor-encapsulated-options = "MY INFORMATION"; On the DHCP client host I can ...
0
votes
2answers
3k views

Getting an IP from an ipv6 dhcp server

I have the following lab: DHCP SERVER [Centos 6] /etc/dhcp/dhcpd6.conf default-lease-time 2592000; preferred-lifetime 604800; option dhcp-renewal-time 3600; option dhcp-rebinding-time 7200; allow ...
1
vote
0answers
148 views

How do I configure stateful DHCPv6 in Windows Server to allow clients to ping each other?

How do I configure stateful DHCPv6 in Windows Server to allow clients to ping each other? I would like to configure my Windows 2k8 DHCP server to distribute IPv6 addresses in my office network that ...
0
votes
1answer
87 views

Should an Active Directory network use IPv6 unique local addresses in addition to global addresses?

Should an Active Directory network use IPv6 unique local addresses in addition to global addresses? If so, should those be distributed using DHCPv6? Also, if a DHCPv6 server is distributing unique ...
11
votes
3answers
785 views

Use Windows DHCP/DHCPv6 server without setting a static address

You cannot set the Windows DHCP/DHCPv6 server to listen on dynamic addresses or all addresses, only static addresses. Is there a technical reason for this limitation? Is there any workaround? My ...
2
votes
1answer
183 views

Linux IPv6: DHCP and /127 prefixes

I've tried multiple pieces of DHCP client and software in attempting to setup a solution for allocating a /127 prefix to virtual machines so that each maintains its own layer 2 isolation. Because ...
3
votes
3answers
794 views

Multiple IPv6 addresses being assigned to single interface

I'm configuring a DHCP scope for IPv6, however all my clients are getting 2 or more IPv6 addresses assigned to the interface. I'm using fda8:6c3:ce53:a890:/64 as the prefix. The scope is on a machine ...
0
votes
1answer
455 views

IPv6 6to4 on Windows Server

I'm looking for a relatively simple guide to setting up an IPv6 tunnel properly. This network currently has a server (Windows Server 2008R2) running RRAS that establishes connectivity to the internet ...
3
votes
1answer
531 views

IPv6 address preference and privacy extensions on Windows 7 and Ubuntu 12.04

I have a dual-stack network with a DHCPv6 server in a stateful mode (managed address configuration). Windows 7 and Ubuntu 12.04 hosts get the address configuration successfully, but still prefer the ...
1
vote
3answers
972 views

SLAAC and DNS, no really - what's the deal?

So I know that there are extensions to SLAAC in the works to enable DNS discovery via RAs (RFC 6106). But what was the original intent? How did the IPv6 designers envision things working without ...
1
vote
1answer
527 views

VMware ESX 5.0 blocking DHCPv6 solicitations in vSwitches?

We have a network on which we're setting up a test IPv6 deployment. Here's the layout: Win2008R2 DHCP VM and Debian Squeeze radvd VM -> vSphere 5.0 vSwitch -(Trunk)-> Catalyst 2960G -(Trunk)-> ...
2
votes
1answer
304 views

DHCP v6 Option for Circuit ID

DHCP v4 has Circuit ID option(82:1) for defining the actual interface ID of the Client. What is the equivalent option in DHCPv6?
2
votes
1answer
165 views

DHCP IPV6 Environment

May I know what are the changes needed in the DHCP message formats if I want to convert into ipv6 environment? Now I am using ipv4 dhcp client and ipv4 dhcp server. But I want to implement this using ...
0
votes
1answer
457 views

Is it possible to make ISC dhcpd (IPv6) 4.2.2 unicast-only?

I ask because the server is handling DHCPv6 for two VLANs and I can see some requests both via DHCPv6-relay from our ProCurve switch and via the ff02::0:2 anycast address and responds to both ...
7
votes
3answers
14k views

How to configure radvd, dhcpd6, routing and /64 subnet based on delegated prefix by DHCPv6-PD server?

My ISP has just started IPv4/IPv6 dual stack service. In order to connect IPv4/IPv6 internet, almost all users usually use a CPE leased by the ISP. But I want to use my Linux router instead of such ...
2
votes
0answers
752 views

Windows 7 Client gets incorrect IPv6 Prefix Length

I am currently setting up IPv6 and DHCPv6 for Server 2008 R2 on my private network for testing. I was able to get DHCPv6 to work by configuring a static, then setting up the scope. I was also able to ...
0
votes
2answers
704 views

Why use DHCPv6 over Stateless Address Autoconfiguration?

IPv6 and RFC 2462 provide a means for hosts to configure their own IP addresses via stateless address autoconfiguration. To me this seems like the bee's knees, and it leaves me wondering why someone ...
0
votes
1answer
317 views

Incorrect default gateway listed across entire domain

Our DC is a Win2k3 box that also does DHCP for the domain. I was having some network issues the other day that turned out to be DNS related and resolved those. Anyway, when I was running diagnostics I ...
2
votes
2answers
2k views

Static IPv4 and dynamic IPv6 on same interface

I am trying to set up a CentOS 5.4 box to use a static IPv4 address, while getting a dynamic IPv6 address at boot time. I have only one interface, apart from the loopback interface, eth0. It has a ...
8
votes
2answers
6k views

IPv6 DHCP Configuration

I want to set up an IPv6 only network for testing. However, I can't find any HOWTOs or information on setting up DHCP to autoconfigure IPv6 DNS server addresses etc. I use radvd on a ubuntu server to ...