For two routes of equal cost to the same destination, one through the Primary Main Office and
one through the Backup Main Office, OSPF will automatically distribute traffic through both
routes, effectively sharing the load between routes.
Hub and spoke with hub redundancy/load sharing using GRE
Configuring VPN hub redundancy and load sharing topologies using GRE
Procedure
1. Configure the Branch Office as follows:
a. VPN policy is configured on the Internet interface egress as follows:
GRE Traffic from the local tunnel endpoint to remote tunnel endpoint 1 ->
encrypt, using IPSec tunnel mode, with the remote peer being tunnel endpoint
1
GRE Traffic from the local tunnel endpoint to remote tunnel endpoint 2 ->
encrypt, using IPSec tunnel mode, with the remote peer being tunnel endpoint
2
b. An access control list (ACL) is configured on the Internet interface to allow only
the VPN / ICMP traffic. See
VPN hub redundancy and load sharing
on page 532 for configuration settings.
For information about using access control lists, see
on
page 557.
IPSec VPN
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Summary of Contents for G430
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