2 IPv6 Router Configuration.pptx

NETWORKING 2 NET102 Configure an IPv6 Router Interface  Configure an IPv6 Router Interface  Most IPv6 configuration and verification commands in the Cisco IOS are similar to their IPv4 counterparts.  In many cases, the only difference is the use of ipv6 in place of ip in c...

NETWORKING 2 NET102 Configure an IPv6 Router Interface  Configure an IPv6 Router Interface  Most IPv6 configuration and verification commands in the Cisco IOS are similar to their IPv4 counterparts.  In many cases, the only difference is the use of ipv6 in place of ip in commands.  An IPv6 interface must be  Configured with IPv6 address and subnet mask—Use the ipv6 address ipv6-address/prefix-length [link-local | eui-64] interface configuration command  Activated—The interface must be activated using the no shutdown command.  An interface can generate its own IPv6 link-local address without having a global unicast address by using the ipv6 enable interface configuration command. Configure an IPv6 Router Interface  Unlike IPv4, IPv6 interfaces will typically have more than one IPv6 address.  At a minimum, an IPv6 device must have an IPv6 link-local address but will most likely also have an IPv6 global unicast address.  IPv6 also supports the ability for an interface to have multiple IPv6 global unicast addresses from the same subnet.  The following commands can be used to statically create a global unicast or link- local IPv6 address:  ipv6 address ipv6-address/prefix-length—Creates a global unicast IPv6 address as specified  ipv6 address ipv6-address/prefix-length eui-64—Configures a global unicast IPv6 address with an interface identifier (ID) in the loworder 64 bits of the IPv6 address using the EUI-64 process  ipv6 address ipv6-address/prefix-length link-local Configures a static link-local address on the interface that is used instead of the link-local address that is automatically configured when the global unicast IPv6 address is assigned to the interface or enabled IPv6 Structure IPv6 Structure  An IPv6 address is split into two parts: a network and a node component.  The network component is the first 64 bits of the address and is used for routing.  The node component is the later 64 bits and is used to identify the address of the interface.  The network node can be split even further into a block of 48 bits and a block of 16 bits.  The upper 48-bit section is used for global network addresses.  The lower 16-bit section is controlled by network administrators and is used for subnets on an internal network. Example  In the example topology shown in Figure 1-21, R1 must be configured to support the following IPv6 network addresses  2001:0DB8:ACAD:0001:/64 or equivalently 2001:DB8:ACAD:1::/64  2001:0DB8:ACAD:0002:/64 or equivalently 2001:DB8:ACAD:2::/64  2001:0DB8:ACAD:0003:/64 or equivalently 2001:DB8:ACAD:3::/64 PC sample configuration: IPv6 Let’s code