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Page 56 / 150 Scroll up to view Page 51 - 55
Configuring Network
Configuring IPv6
Cisco CVR100W Wireless-N VPN Router Administration Guide
54
3
STEP
3
(Optional) If you are using 6to4 tunneling, which allows IPv6 packets to be
transmitted over an IPv4 network, do the following:
•
Click
Show Static 6to4 DNS Entry
.
•
In the
Domain
and
IP
fields, enter up to 5 domain-to-IP mappings.
The 6to4 tunneling feature is typically used when a site or end user wants to
connect to the IPv6 Internet using the existing IPv4 network.
STEP
4
Click
Save
.
Configuring IPv6
Configuring IPv6 WAN Settings
Configuring WAN properties for an IPv6 network depends on the type of internet
connection that you have. You can configure the CVR100W to be a DHCPv6 client
of the ISP for this WAN or to use a static IPv6 address provided by the ISP.
Setting the IP Mode
To configure IPv6 WAN settings on your CVR100W, you must first set the IP mode
to LAN:IPv6, WAN:IPv6 or LAN:IPv4+IPv6, WAN:IPv4+IPv6.
See
Configuring IP Mode
for more information.
LAN:IPv4+IPv6,
WAN:IPv4
Choose this option to use IPv4 and IPv6 in the LAN
ports and IPv4 in the WAN ports.
LAN:IPv4+IPv6,
WAN:IPv4+IPv6
Choose this option to use IPv4 and IPv6 in the LAN and
WAN ports.
Page 57 / 150
Configuring Network
Configuring IPv6
Cisco CVR100W Wireless-N VPN Router Administration Guide
55
3
Configuring DHCPv6
If your ISP provides you with a dynamically assigned address, configure the
CVR100W to use be a DHCPv6 client.
To configure the CVR100W to be a DHCPv6 client:
STEP 1
Choose
Networking
>
IPv6 Configuration
>
IPv6 WAN Configuration
.
STEP
2
In the
WAN Connection Type
field, click the
Automatic Configuration-DHCPv6
radio button.
STEP
3
Click
Save
.
Configuring a Static IP Address
If your ISP assigns you a fixed address to access the Internet, configure the
CVR100W to use a static IPv6 address.
To configure the CVR100W to use a static IPv6 address:
STEP 1
Choose
Networking
>
IPv6 Configuration
>
IPv6 WAN Configuration
.
STEP
2
In the
WAN Connection Type
field, click the
Static IPv6
radio button.
STEP
3
In the
Static IP Address
area, enter the following information:
IPv6 Address
Enter the IPv6 address of the WAN port.
IPv6 Prefix Length
Enter the IPv6 prefix length defined by the ISP.
The IPv6 network (subnet) is identified by the initial
bits of the address which are called the prefix.
For example, in the 2001:0DB8:AC10:FE01::
IP address, 2001 is the prefix.
All hosts in the network have identical initial bits for
their IPv6 address; you set the number of common
initial bits in the network’s addresses in this field.
Default IPv6
Gateway
Enter the IPv6 address of the default gateway. This is
the IP address of the server at the ISP that this router
connects to for accessing the Internet.
Page 58 / 150
Configuring Network
Configuring IPv6
Cisco CVR100W Wireless-N VPN Router Administration Guide
56
3
STEP
4
Click
Save
.
Configuring IPv6 LAN Settings
In the IPv6 mode, the LAN DHCP server is enabled by default (similar to the IPv4
mode). The DHCPv6 server assigns IPv6 addresses from configured address
pools that use the IPv6 prefix length assigned to the LAN.
Setting the IP Mode
To configure IPv6 LAN settings on your CVR100W, you must first set the IP mode
to one of the following modes:
•
LAN:IPv6, WAN:IPv4
•
LAN:IPv6, WAN:IPv6
•
LAN:IPv4+IPv6, WAN:IPv4
•
LAN:IPv4+IPv6, WAN:IPv4+IPv6
See
Configuring IP Mode
for more information.
Configuring IPv6 LAN Settings
To configure IPv6 LAN settings:
STEP 1
Choose
Networking
>
IPv6 Configuration
>
IPv6 LAN Configuration
.
STEP
2
In the
IPv6
area, enter the following information to configure the IPv6 LAN address:
Static DNS 1
Enter the IP address of the primary DNS server on the
ISP’s IPv6 network.
Static DNS 2
Enter the IP address of the secondary DNS server on
the ISP’s IPv6 network.
IPv6 Address
Enter the IPv6 address of the CVR100W.
The default IPv6 address for the gateway is fec0::1.
You can change this 128-bit IPv6 address based on
your network requirements.
Page 59 / 150
Configuring Network
Configuring IPv6
Cisco CVR100W Wireless-N VPN Router Administration Guide
57
3
STEP
3
Click
Save
.
Configuring DHCPv6 Settings
To configure DHCPv6 settings:
STEP 1
Choose
Networking
>
IPv6 Configuration
>
IPv6 LAN Configuration
.
STEP
2
In the
Server Settings (DHCPv6)
area, enter the following information to
configure the DHCPv6 settings:
IPv6 Prefix Length
Enter the IPv6 prefix length.
The IPv6 network (subnet) is identified by the initial
bits of the address called the prefix. By default, the
prefix is 64 bits long.
All hosts in the network have the identical initial bits for
their IPv6 address; you set the number of common
initial bits in the network’s addresses in this field.
DHCP Status
Check to enable the DHCPv6 server.
If enabled, the CVR100W assigns an IP address within
the specified range plus additional specified
information to any LAN endpoint that requests DHCP-
served addresses.
Domain Name
Enter the domain name of the DHCPv6 server.
Server Preference
Enter the server preference level of this DHCP server.
DHCP advertise messages with the highest server
preference value to a LAN host are preferred over
other DHCP server advertise messages.
The default is 255.
Static DNS 1
Enter the IPv6 address of the primary DNS server on
the ISP’s IPv6 network.
Static DNS 2
Enter the IPv6 address of the secondary DNS server
on the ISP’s IPv6 network.
Page 60 / 150
Configuring Network
Configuring IPv6
Cisco CVR100W Wireless-N VPN Router Administration Guide
58
3
STEP
3
Click
Save
.
Configuring IPv6 Address Pools
You can define the IPv6 delegation prefix for a range of IPv6 addresses to be
served by the CVR100W’s DHCPv6 server. Using a delegation prefix, you can
automate the process of informing other networking equipment on the LAN of
DHCP information specific for the assigned prefix.
To configure IPv6 address pools:
STEP 1
Choose
Networking
>
IPv6 Configuration
>
IPv6 LAN Configuration
.
STEP
2
In the
IPv6 Address Pools
table, click
Add Row
.
STEP
3
Enter the following information:
STEP
4
Click
Save
.
STEP
5
To edit the settings of a pool, select the pool and click
Edit
. To delete a selected
pool, click
Delete
. Click
Save
to apply your changes.
Client Lease Time
Enter the client lease time.
Enter the duration for which IPv6 addresses are leased
to endpoints on the LAN.
Start Address
Enter the starting IPv6 address of the pool.
End Address
Enter the ending IPv6 address of the pool.
IPv6 Prefix Length
Enter the prefix length.
This field determines the number of common initial bits
in the network’s addresses.

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