H3C Technologies H3C S7500E Series Switches - Manual (Page 180)

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preferred global 2001::5efe:2.1.1.2, life 29d23h59m46s/6d23h59m46s (public)
preferred link-local fe80::5efe:2.1.1.2, life infinite
link MTU 1500 (true link MTU 65515)
current hop limit 255
reachable time 42500ms (base 30000ms)
retransmission interval 1000ms
DAD transmits 0
default site prefix length 48
# By comparison, it is found that the host acquires the address prefix 2001::/64 and automatically
generates the address 2001::5efe:2.1.1.2. Meanwhile, “uses Router Discovery” is displayed, indicating
that the router discovery function is enabled on the host. At this time, ping the IPv6 address of the
tunnel interface of the switch. If the address is successfully pinged, an ISATAP tunnel is established.
C:\>ping 2001::5efe:1.1.1.1
Pinging 2001::5efe:1.1.1.1 with 32 bytes of data:
Reply from 2001::5efe:1.1.1.1: time=1ms
Reply from 2001::5efe:1.1.1.1: time=1ms
Reply from 2001::5efe:1.1.1.1: time=1ms
Reply from 2001::5efe:1.1.1.1: time=1ms
Ping statistics for 2001::5efe:1.1.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 1ms, Average = 1ms
Configuration verification
After the above configurations, the ISATAP host can access the host in the IPV6 network.
Configuring an IPv4 over IPv4 Tunnel
Configuration Prerequisites
z Configure IP addresses for interfaces (such as the VLAN interface, and loopback interface) on the
device to ensure normal communication.
z Specify one of the above interfaces as the source interface of the tunnel.
z Ensure reachability between the tunnel source and destination addresses.
Configuration Procedure
Follow these steps to configure an IPv4 over IPv4 tunnel:
To do… Use the command… Remarks
Enter system view system-view —
Enter tunnel interface view interface tunnel number —