Vrrp - Sierra Wireless AIRLINK HELIX 2140847 User Manual

Command
Alternate Primary
DNS
Alternate Secondary
DNS
Command
Interface
VLAN ID
Group ID
Priority
Virtual IP
Mode
Interval
Rev 3.0D May.10
Description
Alternate primary DNS address. This is optional. If the primary DNS is unavailable, this
DNS address will be used.
Alternate secondary DNS address. This is optional. If the secondary DNS is unavailable,
this DNS address will be used.

VRRP

VRRP allows multiple routers to act as the default gateway router for a subnet
which reduces the possibility of a single point of failure. This is accomplished by
advertising a single virtual router to connected hosts. The physical router that is
currently handling traffic for the virtual router is designated as the master router.
Routers which are not handling traffic are backup routers.
This switchover occurs in 3 to 10 seconds. While IPsec client connections are
disconnected during this transition, users need only to reconnect without
changing the destination address of their connection profile.
Figure 7-8: ACEmanager: LAN/WiFi - VRRP
Description
Interface displays one default VLAN and 3 VLAN IDs.
Displays your VLAN ID.
Enter VRRP Group ID.
VRRP routers in the master and slave have the same Group ID.
VRRP decides whether the device is master or slave.
Greater value of priority indicates that the device is master.
If a Helix is configured with VRRP then the host connected to the Helix will display the Virtual
IP.
Virtual IP will become the VRRP routers device IP.
Displays if the Helix is Master or Back-up.
The Priority number determines the master or back-up status.
VRRP advertisement interval. Default is 1 second.
Configuring LAN/WiFi
35