Ipv6 manual tunnel Configuration Example

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Revision as of 21:43, 10 November 2010

Contents

Introduction

To connect discontiguous ipv6 domains over existing ipv4 network, we need to enable tunnels. There are many types of configuring ipv6 tunnels over an existing ipv4 network viz manual tunnel, ISATAP, automatic 6to4 tunnel, GRE tunnel, automatic ipv4-compatible tunnel

The following configuration example provides information about how to configure and verify ipv6 manual tunnel over existing ipv4 network.


Design

IPv6 Manual Tunnel Configuration Example Topology.jpg

Configuration

Related show Commands

This section provides information you can use to confirm your configuration is working properly.

Certain show commands are supported by the Output Interpreter Tool (registered customers only), which allows you to view an analysis of show command output.


Show commands for connectivity:

R1:

R1#show ipv6 interface tunnel 223 Tunnel223 is up, line protocol is up

 IPv6 is enabled, link-local address is FE80::202:201 
 No Virtual link-local address(es):
 Global unicast address(es):
   2002:1:2:223::22, subnet is 2002:1:2:223::/64 
 Joined group address(es):
   FF02::1
   FF02::2
   FF02::D
   FF02::16
   FF02::1:FF00:22
   FF02::1:FF02:201
 MTU is 1480 bytes
 ICMP error messages limited to one every 100 milliseconds
 ICMP redirects are enabled
 ICMP unreachables are sent
 Output features: HW Shortcut Installation
 Post_Encap features: HW shortcut
 ND DAD is enabled, number of DAD attempts: 1
 ND reachable time is 30000 milliseconds (using 30000)
 ND RAs are suppressed (periodic)
 Hosts use stateless autoconfig for addresses.

R1#show ipv6 route 316:316:316:316::1 Routing entry for 316:316:316:316::/64

 Known via "static", distance 1, metric 0
 Route count is 1/1, share count 0
 Routing paths:
   directly connected via Tunnel223
     Last updated 00:14:27 ago

R1#

R1#ping 316:316:316:316::1 source lo 311

Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 316:316:316:316::1, timeout is 2 seconds: Packet sent with a source address of 311:311:311:311::1 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 0/20/40 ms R1#

R1#trace 316:316:316:316::1

Type escape sequence to abort. Tracing the route to 316:316:316:316::1

 1 2002:1:2:223::3 4 msec 0 msec 0 msec

R1#




R6:

R6#show ipv6 interface tunnel 223 Tunnel223 is up, line protocol is up

 IPv6 is enabled, link-local address is FE80::202:202 
 No Virtual link-local address(es):
 Global unicast address(es):
   2002:1:2:223::3, subnet is 2002:1:2:223::/64 
 Joined group address(es):
   FF02::1
   FF02::2
   FF02::D
   FF02::16
   FF02::1:FF00:3
   FF02::1:FF02:202
 MTU is 1480 bytes
 ICMP error messages limited to one every 100 milliseconds
 ICMP redirects are enabled
 ICMP unreachables are sent
 Output features: Access List HW Shortcut Installation
 Post_Encap features: HW shortcut
 Outgoing access list tin
 ND DAD is enabled, number of DAD attempts: 1
 ND reachable time is 30000 milliseconds (using 30000)
 Hosts use stateless autoconfig for addresses.

R6#

R6#show ipv6 route 311:311:311:311::1 Routing entry for 311:311:311:311::/64

 Known via "static", distance 1, metric 0
 Route count is 1/1, share count 0
 Routing paths:
   directly connected via Tunnel223
     Last updated 00:14:23 ago

R6#

R6#ping 311:311:311:311::1 source lo 316

Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 311:311:311:311::1, timeout is 2 seconds: Packet sent with a source address of 316:316:316:316::1 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/32/100 ms

R6#

R6#trace 311:311:311:311::1

Type escape sequence to abort. Tracing the route to 311:311:311:311::1

 1 2002:1:2:223::22 0 msec 0 msec 0 msec

R6#

Show running-config

Add show running config of your device

Related Information

Technical Support & Documentation - Cisco Systems

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