Refer to the partial Cisco IOS router configuration exhibit.
Which type of tunnel configuration is shown?
A.
GRE tunnel
B.
manual 6in4 tunnel
C.
6to4 automatic tunnel
D.
6RD
E.
IPv4-in-IPv6 tunnel
Explanation:
http://www.networking-forum.com/blog/?p=24
http://www.cisco.com/c/en/us/td/docs/ios/ipv6/configuration/guide/12_4t/ipv6_12_4t_book/ip6-tunnel.html
See Table 2.
Configuring Manual IPv6 Tunnels
Perform this task to configure manual IPv6 tunnels.
Prerequisites
With manually configured IPv6 tunnels, an IPv6 address is configured on a tunnel interface, and manually configured IPv4 addresses are assigned to the tunnel source and the tunnel destination. The host or router at each end of a configured tunnel must support both the IPv4 and IPv6 protocol stacks.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface tunnel tunnel-number
4. ipv6 address ipv6-prefix/prefix-length [eui-64]
5. tunnel source {ipv4-address | interface-type interface-number}
6. tunnel destination ipv4-address
7. tunnel mode ipv6ip
8. end
0
0
B.
manual 6in4 tunnel
0
0