Cisco 28xx router nat-pt configuration – Kofax Communication Server 9.1 User Manual
Page 63
Environment Guide
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IPV6
Main-Network
TC/LINK Server
IPV6
KCSClient
IPV6
EmailServer
IPV6
KCSClient
IPV6
LS1
IPV4
KCSCore
IPV6
IPV4
Sub-Network
NAT-PT
Translation
There are the following requirements to implement NAT-PT on a Cisco router in order to integrate KCS
IPv6-only Windows applications with KCS IPv4-only hardware boxes:
1. Create a dedicated or choose an available IPv4 sub-network in the geographical location where KCS
hardware boxes are located and connect them to this sub-network
2. Choose one of the available Cisco routers with IOS version 12.4T(22) or later (being connected to the
customer‟s main IPv6 only network), equip it with a dedicated LAN interface and connect this interface
to our IPv4 sub-network.
3. Configure the NAT-PT translation between IPv6 and IPv4 interfaces on the Cisco router
Cisco provides very detailed documentation for NAT-PT configuration, for example here:
6.5.4
Cisco 28xx Router NAT-PT Configuration
Let‟s assume that KCS core server (TCOSS) in the IPv6 only network should connect to the LS1 in the IPv4
only network. Both networks are interconnected through Cisco 28xx router.
Relevant configuration parameters are:
1. KCS core has IPv6 address fd96:eb5f:7508:5760:204:23ff:feac:4172
2. LS1 server has IPv4 address 172.20.148.6
3. The router has NAT-PT prefix fd96::/96 configured
4. The router maps the source address 172.20.148.6 to fd96::1
5. The router maps the source address fd96:eb5f:7508:5760:204:23ff:feac:4172 to
172.20.148.53
How NAT-PT works on the Cisco router: