GRE Protocol Interface
GRE Interface Configuration ▀
Cisco ASR 5x00 Packet Data Network Gateway Administration Guide ▄
267
end
Notes:
<
vpn_context_name
> is the name of the system context you want to use for VRF. For more information, refer
System Administration Guide
.
A maximum of 100 VRFs in one context and up to 1024 VRFs on one chassis can be configured on system.
<
vrf_name
> is name of the VRF which is to be associated with various interfaces.
A maximum of 10000 routes can be configured through
ip maximum-routes
<
max_routes
> command.
GRE Tunnel Interface Configuration
This section provides the configuration example to configure the GRE tunnel interface and associate a VRF with GRE
interface:
configure
context <
vpn_context_name
>
ip interface <
intfc_name
> tunnel
ip vrf forwarding <
vrf_name
>
ip address <
internal_ip_address/mask
>
tunnel-mode gre
source interface <
non_tunn_intfc_to_corp
>
destination address <
global_ip_address
>
keepalive interval <
value
> num-retry <
retry
>
end
Notes:
<
vpn_context_name
> is the name of the system context you want to use for GRE interface configuration. For
more information, refer
Command Line Interface Reference
.
A maximum of 511 GRE t 1 non-tunnel interface can be configured in one context. System needs at
least 1 non-tunnel interface as a default.
<
intfc_name
> is name of the IP interface which is defined as a tunnel type interface and to be used for GRE
tunnel interface.
<
vrf_name
> is the name of the VRF which is preconfigured in context configuration mode.
<
internal_ip_address
/mask> is the network IP address with sub-net mask to be used for VRF forwarding.
<
non_tunn_intfc_to_corp
> is the name a non-tunnel interface which is required by system as source
interface and preconfigured. For more information on interface configuration refer
System Administration
Guide
.
<
global_ip_address
> is a globally reachable IP address to be used as a destination address.