Maipu Administration Guide

Configure Basic Functions of IPv6 over IPv4 Manual Tunnel

Network Requirements

IPv6 Network1 and IPv6 Network2 are the private IPv6 network of Device1 and Device3 respectively.
IPv6 Network1 and IPv6 Network2 communicate via the IPv6 over IPv4 manual tunnel between Device1 and Device3.

Network Topology

Networking for Configuring the basic functions of IPv6 over IPv4 manual tunnel

Figure 11-1 Networking for Configuring the basic functions of IPv6 over IPv4 manual tunnel

Configuration Steps

Step 1: Configure the IP address of the interface (omitted).

Step 2: Configure OSPF, making Device1, Device2, and Device3 communicate with each other.

#Configure Device1.

Device1#configure terminal
Device1(config)#router ospf 100
Device1(config-ospf)#network 1.0.0.0 0.0.0.255 area 0
Device1(config-ospf)#exit

#Configure Device2.

Device2#configure terminal
Device2(config)#router ospf 100
Device2(config-ospf)#network 1.0.0.0 0.0.0.255 area 0
Device2(config-ospf)#network 2.0.0.0 0.0.0.255 area 0
Device2(config-ospf)#exit

#Configure Device3.

Device3#configure terminal
Device3(config)#router ospf 100
Device3(config-ospf)#network 2.0.0.0 0.0.0.255 area 0
Device3(config-ospf)#exit

#Query the route table of Device3.

Device3#show ip route 
Codes: C - connected, S - static, R - RIP, O - OSPF, OE-OSPF External, M - Management 
       D - Redirect, E - IRMP, EX - IRMP external, o - SNSP, B - BGP, i-ISIS  
 
Gateway of last resort is not set 
 
O 1.0.0.0/24 [110/65536] via 2.0.0.1, 00:18:40, vlan2 
C 2.0.0.0/24 is directly connected, 00:22:27, vlan2

The querying methods of Device1 and Device2 are the same as that of Device3, so the querying process is omitted.

Step 3: Configure the IPv6 over IPv4 manual tunnel.

#On Device1, configure IPv6 over IPv4 manual tunnel tunnel1, the source address is 1.0.0.1, the destination address is 2.0.0.2, and the IPv6 address is 10::1.

Device1(config)#interface tunnel 1
Device1(config-if-tunnel1)#tunnel mode ipv6ip
Device1(config-if-tunnel1)#tunnel source 1.0.0.1
Device1(config-if-tunnel1)#tunnel destination 2.0.0.2
Device1(config-if-tunnel1)#ipv6 address 10::1/64
Device1(config-if-tunnel1)#exit

#On Device3, configure IPv6 over IPv4 manual tunnel tunnel1, the source address is 2.0.0.2, the destination address is 1.0.0.1, and the IPv6 address is 10::2.

Device3(config)#interface tunnel 1
Device3(config-if-tunnel1)#tunnel mode ipv6ip
Device3(config-if-tunnel1)#tunnel source 2.0.0.2
Device3(config-if-tunnel1)#tunnel destination 1.0.0.1
Device3(config-if-tunnel1)#ipv6 address 10::2/64
Device3(config-if-tunnel1)#exit

#Query the IPv6 over IPv4 manual tunnel information of Device3.

Device3#show tunnel 1 
 
Tunnel 1: 
    Tunnel mode is ipv6ip 
    Source ipv4 address is 2.0.0.2 (Source ipv4 address is up on source interface vlan2) 
    Destination ipv4 address is 1.0.0.1 
    Tunnel state is up 
    Encapsulation vrf is global(0x0) 
    TTL(time-to-live) is 255 
    TOS(type of service) is not set total(1)

The querying method of Device1is the same as that of Device3, so the querying process is omitted.
When the tunnel is not in the same network segment, it is necessary to configure the static route to the peer tunnel on the devices at both ends of the tunnel, and the output interface is the tunnel interface.

Step 4: Configure the static route.

#On Device1, configure the static route to IPv6 Network2 with the egress interface tunnel1.

Device1(config)#ipv6 route 3002::/64 tunnel1

#On Device3, configure the static route to IPv6 Network1 with the egress interface tunnel1.

Device3(config)#ipv6 route 3001::/64 tunnel1

#Query the IPv6 route table of Device3.

Device3#show ipv6 route 
Codes: C - Connected, L - Local, S - static, R - RIP, B - BGP, i-ISIS 
       U - Per-user Static route 
       O - OSPF, OE-OSPF External, M - Management 
 
L ::1/128 [0/0] 
   via ::, 1w6d:20:35:50, lo0
C 10::/64 [0/0] 
   via ::, 00:03:31, tunnel1
L 10::2/128 [0/0] 
     via ::, 00:03:29, lo0
S 3001::/64 [1/100000] 
   via ::, 00:00:01, tunnel1
C 3002::/64 [0/0] 
  via ::, 00:00:06, vlan3
L 3002::1/128 [0/0] 
     via ::, 00:00:04, lo0

The querying method of Device1 is the same as that of Device3, so the querying process is omitted.