Cisco OL-4015-08 User Manual page 119

Chapter 4 Edit Interface/Connection
Tunnel Source
Tunnel Destination
Tunnel IP Address
GRE Keepalive
Maximum Transmission Unit
Bandwidth
OL-4015-08
Select the interface that the tunnel will use. This interface must be reachable from
the other end of the tunnel; therefore, it must have a public, routeable
The tunnel destination is the interface on the router at the other end of the tunnel.
Select whether you will specify an IP address or a host name, and then enter that
information. If you selected IP address, provide the IP address and subnet mask
in dotted decimal format; for example, 192.168.20.1 and 255.255.255.0.
Make sure that this address or host name is reachable using the ping command;
otherwise, the tunnel will not be created properly.
Enter the IP address of the tunnel in dotted decimal format; for example,
192.168.20.1. For more information, refer to
Check this box if you want the router to send GRE keepalives. Specify the
interval, in seconds, that keepalives will be sent, and the waiting period, in
seconds, between retries.
Enter the maximum transmission unit (MTU) size. If you want the size adjusted
to a lower value when the adjustment would avoid packet fragmentation, click
Adjust MTU to avoid fragmentation.
Click to specify the bandwidth for this tunnel in kilobytes.
Cisco Router and Security Device Manager Version 2.2 User's Guide
Add or Edit GRE Tunnel'
IP Addresses and Subnet
IP address.
Masks.
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