Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 174)

You must specify the prefix-length parameter as a decimal value. A slash mark (/) must follow the
ipv6-prefix parameter and precede the prefix-length parameter.
To configure a /122 address on a VE enter commands similar to the following.
device(config-vlan-11)#int ve11
device(config-vif-11)#ipv6 add 2001:DB8::1/122
device(config-vif-11)#sh ipv6 int
Routing Protocols : R - RIP O - OSPF
Interface Status Routing Global Unicast Address
VE 11 up/up 2001:DB8::1/122
device(config-vif-11)#sh ipv6 route
IPv6 Routing Table - 1 entries:
Type Codes: C - Connected, S - Static, R - RIP, O - OSPF, B - BGP
OSPF Sub Type Codes: O - Intra, Oi - Inter, O1 - Type1 external, O2 - Type2 external
Type IPv6 Prefix Next Hop Router Interface Dis/Metric
C 2001:DB8::/122 :: ve 11 0/0
Configuring a global IPv6 address with an automatically computed EUI-64 interface ID
To configure a global IPv6 address with an automatically computed EUI-64 interface ID in the low-
order 64-bits, enter commands such as the following.
device(config)#interface ethernet 3/1
device(config-if-e1000-3/1)#ipv6 address 2001:DB8:12D:1300::/64 eui-64
These commands configure the global prefix 2001:DB8:12d:1300::/64 and an interface ID, and enable
IPv6 on Ethernet interface 3/1.
Syntax: ipv6 address ipv6-prefix/prefix-length eui-64
You must specify the ipv6-prefix parameter in hexadecimal using 16-bit values between colons as
documented in RFC 2373.
You must specify the prefix-length parameter as a decimal value. A slash mark (/) must follow the
ipv6-prefix parameter and precede the prefix-length parameter.
The eui-64 keyword configures 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.
Configuring a link-local IPv6 address on an interface
To explicitly enable IPv6 on a router interface without configuring a global or site-local address for the
interface, enter commands such as the following.
device(config)#interface ethernet 3/1
device(config-if-e1000-3/1)#ipv6 enable
These commands enable IPv6 on Ethernet interface 3/1 and specify that the interface is assigned an
automatically computed link-local address.
Syntax: [no] ipv6 enable
NOTE
When configuring VLANs that share a common tagged interface with a physical or Virtual Ethernet
(VE) interface, Brocade recommends that you override the automatically computed link-local address
with a manually configured unique address for the interface. If the interface uses the automatically
computed address, which in the case of physical and VE interfaces is derived from a global MAC
address, all physical and VE interfaces will have the same MAC address.
Configuring a link-local IPv6 address on an interface
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