R3303-HP HSR6800 Routers Layer 3 - IP Services Configuration Guide

279
Ste
p
Command Remarks
5. Configure the source address
or interface for the tunnel
interface.
source { ip-address | interface-type
interface-number }
By default, no source address or
interface is configured for a tunnel
interface.
On each branch node, you must
configure the tunnel destination
address as this source address.
6. Enable the GRE packet
checksum function.
gre checksum
Optional.
Disabled by default.
For more information about the
GRE packet checksum function, see
"Configuring GRE."
7. Configure a route for packet
forwarding through the
tunnel.
See Layer 3—IP Routing
Configuration Guide.
Each end of the tunnel must have a
route (static or dynamic) through
the tunnel to the other end.
8. Configure the aging time for
the tunnel entries.
gre p2mp aging-time aging-time
Optional.
5 seconds by default.
9. Specify the backup interface.
gre p2mp backup-interface tunnel
number
Optional.
By default, no backup interface is
specified.
The backup interface must be an
existing tunnel interface that
operates in GRE over IPv4 mode.
10. Configure the mask or mask
length of the private network
addresses of the branch.
gre p2mp branch-network-mask
{ mask | mask-length }
Optional.
By default, the mask of the private
network address of a branch is
255.255.255.255. The default
mask length is 32.
For more information about tunnel interfaces and related configurations, see "Configuring tunneling."
For more information about commands interface tunnel, tunnel-protocol, and source, see Layer 3—IP
Services Command Reference.
Displaying and maintaining P2MP GRE tunnels
Task Command Remarks
Display the tunnel entry
information for a P2MP GRE tunnel
interface.
display gre p2mp tunnel-table
interface tunnel number [ | { begin
| exclude | include }
regular-expression ]
Available in any view.
Clear the tunnel entry information
for a P2MP GRE tunnel interface.
reset gre p2mp tunnel-table
[ interface tunnel number
[ dest-address
tunnel-dest-address] ]
Available in user view.