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Cisco ONS 15600 Reference Manual, R7.2
Chapter 9 Management Network Connectivity
9.7.8 IP-over-CLNS Tunnels
If you are provisioning an IP-over-CLNS tunnel on a Cisco router, always follow procedures provided
in the Cisco IOS documentation for the router you are provisioning. For information about ISO CLNS
provisioning including IP-over-CLNS tunnels, see the “Configuring ISO CLNS” chapter in the
Cisco IOS Apollo Domain, Banyon VINES, DECnet, ISO CLNS, and XNS Configuration Guide.
9.7.8.2 IP-Over-CLNS Tunnel Scenario 1: ONS Node to Other Vendor GNE
Figure 9-26 shows an IP-over-CLNS tunnel created from an ONS node to another vendor GNE. The
other vendor NE has an IP connection to an IP DCN to which a CTC computer is attached. An OSI-only
(LAP-D) SDCC and a GRE tunnel are created between the ONS NE 1 to the other vender GNE.
IP-over-CLNS tunnel on the ONS NE 1:
•
Destination: 10.10.10.100 (CTC 1)
•
Mask: 255.255.255.255 for host route (CTC 1 only), or 255.255.255.0 for subnet route (all CTC
computers residing on the 10.10.10.0 subnet)
•
NSAP: 39.840F.80.1111.0000.1111.1111.cccccccccccc.00 (other vendor GNE)
•
Metric: 110
•
Tunnel Type: GRE
IP-over-CLNS tunnel on the other vender GNE:
•
Destination: 10.20.30.30 (ONS NE 1)
•
Mask: 255.255.255.255 for host route (ONS NE 1 only), or 255.255.255.0 for subnet route (all ONS
nodes residing on the 10.30.30.0 subnet)
•
NSAP: 39.840F.80.1111.0000.1111.1111.dddddddddddd.00 (ONS NE 1)
•
Metric: 110
•
Tunnel Type: GRE
Table 9-15 IP Over CLNS Tunnel IOS Commands
Step Step Purpose
1 Router (config) # interface ctunnel
interface-number
Creates a virtual interface to transport IP over a
CLNS tunnel and enters interface configuration
mode. The interface number must be unique for each
CTunnel interface.
2 Router (config-if # ctunnel destination
remote-nsap-address
Configures the destination parameter for the
CTunnel. Specifies the destination NSAP1 address of
the CTunnel, where the IP packets are extracted.
3 Router (config-if) # ip address
ip-address mask
Sets the primary or secondary IP address for an
interface.