User`s guide

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Chaining IP Addresses
It is possible to chain backup IP addresses by making multiple entries in the table.
For example, if the backup IP address for the original IP address appears as the IP address
in the next row, along with a new backup IP address for that IP address, then when, the
original IP address becomes unavailable, the router will try the backup IP address and if
that is unavailable, the router will try its backup IP address and so on. To make this
example more concrete, say the original IP address is 192.168.0.1 with a backup IP address
of 192.168.0.2, then setting the IP address in the next row to 192.168.0.2 with a backup IP
address of 192.168.0.3 will cause the router to try all these IP addresses in succession.
Note:
The length of time that it takes for a connection to an IP address to fail is determined by the
Connect timeout parameter on the Configuration – Network > Advanced Network
Settings > Socket Settings web page.
Related CLI Commands
Entity
Instance
Parameter
Values
Equivalent Web Parameter
ipbu n IPaddr
Valid IP address
a.b.c.d
IP Address a.b.c.d
ipbu n BUIPaddr
Valid IP address
a.b.c.d
Backup IP Address a.b.c.d
ipbu n retrysec 0 - 2147483648 Retry Time s (seconds)
ipbu n donext OFF,ON Try Next
sarsys 0 dest
Valid IP address
a.b.c.d
Send “Backup IP” system
messages to IP address a.b.c.d