Configuring path mtu discovery, Configuring the interface mtu – H3C Technologies H3C S12500 Series Switches User Manual
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[Switch] interface vlan-interface 101
[Switch-Vlan-interface101] ip address 1.1.1.1 255.0.0.0
[Switch-Vlan-interface101] quit
# Configure an ISATAP tunnel interface tunnel 0.
[Switch] interface tunnel 0 mode ipv6-ipv4 isatap
# Configure an ISATAP address for the tunnel interface tunnel 0.
[Switch-Tunnel0] ipv6 address 2001::5efe:0101:0101 64
# Configure VLAN-interface 101 as the source interface of the tunnel interface.
[Switch-Tunnel0] source vlan-interface 101
# Disable RA suppression so that the ISATAP host can acquire information such as the address
prefix from the RA message advertised by the ISATAP switch.
[Switch-Tunnel0] undo ipv6 nd ra halt
[Switch-Tunnel0] quit
# Configure a static route to the ISATAP host.
[Switch] ipv6 route-static 2001:: 16 tunnel 0
•
Configure the ISATAP host:
Configurations on the ISATAP host vary depending on the operating system. The following
example is performed on Windows XP.
# Install IPv6.
C:\>ipv6 install
# On a host running Windows XP, the ISATAP interface is usually interface 2. Configure the IPv4
address of the ISATAP switch on the interface to complete the configuration on the host. Before
doing that, view the ISATAP interface information:
C:\>ipv6 if 2
Interface 2: Automatic Tunneling Pseudo-Interface
Guid {48FCE3FC-EC30-E50E-F1A7-71172AEEE3AE}
does not use Neighbor Discovery
does not use Router Discovery
routing preference 1
EUI-64 embedded IPv4 address: 0.0.0.0
router link-layer address: 0.0.0.0
preferred link-local fe80::5efe:2.1.1.2, life infinite
link MTU 1280 (true link MTU 65515)
current hop limit 128
reachable time 42500ms (base 30000ms)
retransmission interval 1000ms
DAD transmits 0
default site prefix length 48
# A link-local address (fe80::5efe:2.1.1.2) in the ISATAP format has been automatically
generated for the ISATAP interface. Configure the IPv4 address of the ISATAP switch on the
ISATAP interface.
C:\>ipv6 rlu 2 1.1.1.1
# Display information about the ISATAP interface.
C:\>ipv6 if 2
Interface 2: Automatic Tunneling Pseudo-Interface
Guid {48FCE3FC-EC30-E50E-F1A7-71172AEEE3AE}