tailieunhanh - cisco press ccna portable command guide 2nd edition 640 802 phần 8

Kích hoạt giao diện Vào chế độ cấu hình giao diện tự động cấu hình một địa chỉ IPv6 linklocal trên giao diện và cho phép xử lý IPv6 trên giao diện cấu hình một địa chỉ IPv6 toàn cầu với một định danh giao diện trong thấp thứ tự 64 bit của địa chỉ IPv6 | IPv6 Tunnels Manual Overlay Tunnel 241 Houston config-if no shutdown Activates the interface Houston config-if interface fastethernet 0 1 Enters interface configuration mode Houston config-if ipv6 enable Automatically configures an IPv6 linklocal address on the interface and enables IPv6 processing on the interface Houston config-if ipv6 address 2001 db8 c18 3 64 eui-64 Configures a global IPv6 address with an interface identifier in the low-order 64 bits of the IPv6 address Houston config-if ipv6 rip tower enable Creates the RIPng process named tower and enables RIPng on the interface Houston config-if no shutdown Activates the interface Houston config-if exit Moves to global configuration mode Houston config exit Moves to privileged mode Houston copy running-config startup-config Saves the configuration to NVRAM IPv6 Tunnels Manual Overlay Tunnel NOTE Although not part of the official CCNA exam objectives the concept of IPv6 tunnels is one that network administrators dealing with IPv6 need to be comfortable with. Figure 25-2 illustrates the network topology for the configuration that follows which shows how IPv6 tunnels are created. IPv6 Host IPv6 Network Figure 25-2 Net-work Topology for IPv6 Tunnel Creation Dual-Stack Router IPv4 Tunnel Dual-Stack Router DCE S0 0 10112 24 S0 0 24 fa0 0 J Juneau 2001 db8 c003 111e 1 64 airbanksl IPv6 Host fa0 0 2001 db8 C003 111f 1 64 Pv6 Network Juneau Tunnel 0 2001 db8 c003 1104 1 64 Source S0 0 - Destination Fairbanks Tunnel 0 2001 db8 c003 1104 2 64 Source S0 0 - Destination 242 IPv6 Tunnels Manual Overlay Tunnel Juneau Router Router enable Moves to privileged mode Router configure terminal Moves to global configuration mode Router config hostname Juneau Sets the host name of the router Juneau config ipv6 unicastrouting Enables the forwarding of IPv6 unicast datagrams globally on the router Juneau config interface tunnel0 Moves to tunnel interface configuration mode Juneau .