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AhnLab TrusGuard Installation Guide
(O: Required, +: Optional).
HA Mode
Operation
Mode
HA Sync
Interface
HA
Interface
OSPF/RIP
STP
L2 Switch
L3 Switch
Active-
Standby
Router
O
O
O
+
Bridge
O
O
O
+
Active-
Active
Router
O
O
O
+
Bridge
O
O
O
O
Active-Standby Router Mode
The sub-network uses the master's virtual IP address, VIP2, as the gateway.
All the HA peers use the upper router’s IP address as the gateway.
The routing gateway from top to bottom uses the master’s virtual IP address, VIP3.
You can set this mode regardless of the type of upper/lower switch (L2, L3).
All routing goes through the master's virtual IP address: VIP1 and VIP3.
If a problem occurs in the master, the slave informs the upper/lower device that it has brought over
VIP1 and VIP3 through ARP.