You can take a look for EZVPN. EZVPN supports site to site VPN and remote access via VPN client. You can use 1800 as your EZVPN server and 800 as your EZVPN remote. Here it the link for EZVPN support platform and required IOS
For redundancy, you can configure 2 peers at 800 EZVPN remote router; when the primary peer fail, it will automatically build SA with the 2nd peer. The downside is there is no preempt feature for backup, which means when you primary peer comes back it will not switch over. Here is the link for EZVPN configuration guide
"Stateful failover for IP Security (IPSec) enables a router to continue processing and forwarding IPSec packets after a planned or unplanned outage occurs"
"SSO allows the active and standby routers to share IKE and IPSec state information so that each router has enough information to become the active router at any time. To configure stateful failover for IPSec, a network administrator should enable HSRP, assign a virtual IP address, and enable the SSO protocol."
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...