User's Manual
Table Of Contents
User Manual
64
after it recovers.
5.6.4 Interface Backup
Scenario: VG710 accesses to the Internet via Wi-Fi, and an interface backup
allows ER800 to access to the Internet through cellular when Wi-Fi is down. The
topology is shown as below.
Method for creating an interface backup in ER800:
1. Configure ER800 to access to the Internet via Wi-Fi.
2. Click "Link Backup >> SLA >> SLA", add an ICMP detection entry. Set the IP
address to the host address that can be detected over ICMP on the public or