Testing the Vigor2850Vn Router with IPv6
Posted by on 14 February 2012 10:14 AM
The Vigor2850 router is a VDSL router which is backwards compatible with ADSL2+. Functionally it is similar to the Vigor2830. The main physical differences are that the fourth Gigabit LAN port is also used as the second WAN port as well as the VDSL interface.
The unit tested is the Vigor2850Vn serial number 119001932890
Firmware version: 3.6.0_RC2 (IPV6 beta release)
WAN Connection: connected to Internode ADSL2+
The default setting in the Vigor2850 VDSL interface is Auto mode where it Auto Detects the connected line type. Here we have selected ADSL Only mode.
Internet Access Setup
The normal Internode ADSL account only provides IPV4 access. To be able to use IPV6 the login username from the router will have to be changed from "firstname.lastname@example.org" to email@example.com as shown in the screen shot below.
IPV6 is disabled by default (Set to Offline). To enable it click on the IPV6 button and select PPP for the connection type as shown below.
We have used default settings for LAN settings and enabled DHCP for IPv4 addressing.To allow the PC’s to use IPv6 addressing we have to enable IPv6 for the LAN. To do this click on the IPv6 button and enable RADVD. This is the easiest way to set this up. On the PC (Windows 7) we only have to enable DHCP option for IPV6
Below is a brief description of RADVD from Wikipedia .
“The Router Advertisement Daemon (radvd) is an open-source software product that implements link-local advertisements of IPv6 router addresses and IPv6 routing prefixes using the Neighbor Discovery Protocol (NDP) as specified in RFC 2461. The Router Advertisement Daemon is used by system administrators in stateless auto configuration methods of network hosts on Internet Protocol version 6 networks.
When IPv6 hosts configure their network interfaces, they broadcast router solicitation (RS) requests onto the network to discover available routers. The radvd software answers requests with router advertisement (RA) messages. In addition, radvd periodically broadcasts RA packets to the attached link to update network hosts. The router advertisement messages contain the routing prefix used on the link, the link maximum transmission unit (MTU), and the address of the responsible default router.
Radvd also supports the recursive DNS server (RDNSS) and DNS search list (DNSSL) options for NDP published in RFC 6106.”
Below is the TCP/IP information on the PC. It shows the IPv6 IP details as well as the IPv4 information.
Internode has a number of IPv6 test sites listed on their web site.
Running the IPv6 test produces the following results. The IPV6 address is displayed
Connecting to Google using IPv6
Older PC’s not Supporting IPv6
Older PC’s running Windows XP only support IPv4, hence will not be able to access IPv6 services. Running the IPv6 test will display IPv4. The router does not automatically convert IPv4 addressing to IPv6 addressing.