Cisco 7604 Configuration Manual page 195
Catalyst 6500 series switch and cisco 7600 series router firewall services module configuration guide using the cli
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- Configuration manual (1011 pages) ,
- Installation manual (324 pages) ,
- User manual (98 pages)
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Chapter 10
Configuring IPv6
To configure IPv6 on an interface, perform the following steps:
Enter interface configuration mode for the interface for which you are configuring the IPv6 addresses:
Step 1
hostname(config)# interface interface_name
Configure an IPv6 address for the interface. You can assign several IPv6 addresses to an interface, such
Step 2
as an IPv6 link-local, site-local, and global address. However, at a minimum, you must configure a
link-local address.
There are several methods for configuring IPv6 addresses for an interface. Pick the method that suits
your needs from the following:
The simplest method is to enable stateless autoconfiguration on the interface. Enabling stateless
•
autoconfiguration on the interface configures IPv6 addresses based on prefixes received in Router
Advertisement messages. A link-local address, based on the Modified EUI-64 interface ID, is
automatically generated for the interface when stateless autoconfiguration is enabled. To enable
stateless autoconfiguration, enter the following command:
hostname(config-if)# ipv6 address autoconfig
If you only need to configure a link-local address on the interface and are not going to assign any
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other IPv6 addresses to the interface, you have the option of manually defining the link-local address
or generating one based on the interface MAC address (Modified EUI-64 format).
Enter the following command to manually specify the link-local address:
hostname(config-if)# ipv6 address ipv6-address link-local
Enter the following command to enable IPv6 on the interface and automatically generate the link-local
address using the Modified EUI-64 interface ID based on the interface MAC address:
hostname(config-if)# ipv6 enable
Note
Assign a site-local or global address to the interface. When you assign a site-local or global address,
•
a link-local address is automatically created. Enter the following command to add a global or
site-local address to the interface. Use the optional eui-64 keyword to use the Modified EUI-64
interface ID in the low order 64 bits of the address.
hostname(config-if)# ipv6 address ipv6-address [eui-64]
(Optional) Suppress Router Advertisement messages on an interface. By default, Router Advertisement
Step 3
messages are automatically sent in response to router solicitation messages. You may want to disable
these messages on any interface for which you do not want FWSM to supply the IPv6 prefix (for
example, the outside interface).
Enter the following command to suppress Router Advertisement messages on an interface:
hostname(config-if)# ipv6 nd suppress-ra
See the
addresses applied to an interface.
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
OL-20748-01
You do not need to use the ipv6 enable command if you enter any other ipv6 address commands
on an interface; IPv6 support is automatically enabled as soon as you assign an IPv6 address to
the interface.
"Example 4: IPv6 Configuration Example" section on page B-13
Configuring IPv6 on an Interface
for an example of IPv6
10-3
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Troubleshooting
