R0106-HP MSR Router Series Layer 3 - IP Services Configuration Guide(V7)

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[RouterB] interface tunnel 2 mode ipv6
# Specify an IPv4 address for the tunnel interface.
[RouterB-Tunnel2] ip address 30.1.2.2 255.255.255.0
# Specify the IP address of Serial 2/2/1 as the source address for the tunnel interface.
[RouterB-Tunnel2] source 2002::2:1
# Specify the IP address of Serial 2/2/0 on Router A as the destination address for the tunnel
interface.
[RouterB-Tunnel2] destination 2001::1:1
[RouterB-Tunnel2] quit
# Configure a static route destined for IPv4 network 1 through the tunnel interface.
[RouterB] ip route-static 30.1.1.0 255.255.255.0 tunnel 2
Verifying the configuration
# Use the display interface tunnel command to display the status of the tunnel interfaces on Router A and
Router B. The output shows that the tunnel interfaces are up. (Details not shown.)
# Ping the IPv4 address of the peer interface GigabitEthernet 2/1/1 from each router. The following
shows the output on Router A.
[RouterA] ping -a 30.1.1.1 30.1.3.1
Ping 30.1.3.1 (30.1.3.1) from 30.1.1.1: 56 data bytes, press CTRL_C to break
56 bytes from 30.1.3.1: icmp_seq=0 ttl=255 time=3.000 ms
56 bytes from 30.1.3.1: icmp_seq=1 ttl=255 time=1.000 ms
56 bytes from 30.1.3.1: icmp_seq=2 ttl=255 time=0.000 ms
56 bytes from 30.1.3.1: icmp_seq=3 ttl=255 time=1.000 ms
56 bytes from 30.1.3.1: icmp_seq=4 ttl=255 time=1.000 ms
--- Ping statistics for 30.1.3.1 ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.000/1.200/3.000/0.980 ms
Configuring a DS-Lite tunnel
A B4 tunnel interface can establish a tunnel with only one AFTR tunnel interface, but an AFTR tunnel
interface can establish tunnels with multiple B4 tunnel interfaces.
Follow these guidelines when you configure the B4 router of a DS-Lite tunnel:
• The source addresses of local tunnels of the same tunnel mode cannot be the same.
• The destination address specified for the tunnel interface on the B4 router must be the source
address specified for the tunnel interface on the AFTR.
• To ensure correct packet forwarding, identify whether the destination IPv4 network and the IPv4
address of the local tunnel interface are on the same subnet. If not, configure a route reaching the
destination IPv4 network through the tunnel interface. You can configure the route by using one of
the following methods:
{ Configure a static route, and specify the local tunnel interface as the egress interface or specify
the IPv6 address of the peer tunnel interface as the next hop.
{ Enable a dynamic routing protocol on both tunnel interfaces to achieve the same purpose.
For more information about route configuration, see Layer 3—IP Routing Configuration Guide.
Follow these guidelines when you configure the AFTR of a DS-Lite tunnel: