Brocade Communications Systems FastIron X Series User Manual

An anycast address looks similar to a unicast address, because it is allocated from the unicast address space. If you assign an IPv6
unicast address to multiple interfaces, it is an anycast address. On the Brocade device, you congure an interface assigned an anycast
address to recognize the address as an anycast address.
For example, the following commands congure an anycast address on interface 1/2/1.
device(config)#int e 1/2/1
device(config-if-e1000-1/2/1)#ipv6 address 2001:DB8::/64 anycast
Syntax: ipv6 address ipv6-prex/prex-length [ anycast ]
IPv6 anycast addresses are described in detail in RFC 1884. Refer to RFC 2461 for a description of how the IPv6 Neighbor Discovery
mechanism handles anycast addresses.
Conguring IPv4 and IPv6 protocol stacks
One situation in which you must congure a router to run both IPv4 and IPv6 protocol stacks is if it is deployed as an endpoint for an
IPv6 over IPv4 tunnel.
Each router interface that will send and receive both IPv4 and IPv6 trac must be congured with an IPv4 address and an IPv6 address.
(An alternative to conguring a router interface with an IPv6 address is to explicitly enable IPv6 using the ipv6 enable command. For
more information about using this command, refer to Conguring a link-local IPv6 address on an interface on page 160.)
To congure a router interface to support both the IPv4 and IPv6 protocol stacks, use commands such as the following.
device(config)#ipv6 unicast-routing
device(config)#interface ethernet 1/3/1
device(config-if-e1000-1/3/1)#ip address 10.168.1.1 255.255.255.0
device(config-if-e1000-1/3/1)#ipv6 address 2001:DB8:12d:1300::/64 eui-64
These commands globally enable IPv6 routing and
congure an IPv4 address and an IPv6 address for Ethernet interface 1/3/1.
Syntax: [no] ipv6 unicast-routing
To disable IPv6 trac globally on the router, enter the no form of this command.
Syntax: ip address ip-address sub-net-mask [ secondary ]
You must specify the ip-address parameter using 8-bit values in dotted decimal notation.
You can specify the sub-net-mask parameter in either dotted decimal notation or as a decimal value preceded by a slash mark (/).
The secondary keyword species that the congured address is a secondary IPv4 address.
To remove the IPv4 address from the interface, enter the no form of this command.
Syntax: ipv6 address ipv6-prex /prex-length [ eui-64 ]
This syntax species a global or site-local IPv6 address. For information about conguring a link-local IPv6 address, refer to Conguring
a link-local IPv6 address on an interface on page 160.
You must specify the ipv6-prex parameter in hexadecimal using 16-bit values between colons as documented in RFC 2373.
You must specify the prex-length parameter as a decimal value. A slash mark (/) must follow the ipv6-prex parameter and precede the
prex-length parameter.
The eui-64 keyword congures the global address with an EUI-64 interface ID in the low-order 64 bits. The interface ID is automatically
constructed in IEEE EUI-64 format using the interface’s MAC address. If you do not specify the eui-64 keyword, you must manually
congure the 64-bit interface ID as well as the 64-bit network prex. For more information about manually conguring an interface ID,
refer to Conguring a global or site-local IPv6 address on an interface on page 159.
Conguring basic IPv6 connectivity on a Layer 3 switch
FastIron Ethernet Switch Layer 3 Routing
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Brocade Communications Systems FastIron X Series Specifications

General

Brand	Brocade Communications Systems
Model	FastIron X Series
Category	Switch
Language	English