Zoom 5363, User Manual, Page: 119 / 142

Select Enable to enable replay detection. As VPN setup is
processing intensive, the system is vulnerable to Denial of
Service (DOS) attacks. The IPSec receiver can detect and
reject old or duplicate packets to protect against replay attacks.
Replay Detection
Select Enable to send NetBIOS (Network Basic Input/Output
System) packets through the VPN connection. NetBIOS
packets are TCP or UDP packets that enable a computer to find
other computers. It may sometimes be necessary to allow
NetBIOS packets to pass through VPN tunnels in order to allow
local computers to find computers on the remote network and
vice versa.
NetBIOS Broadcast
Forwarding
Select Enable to force the Cable Modem/Router to periodically
detect if the remote IPSec Cable Modem/Router is available or
not.
Dead Peer Detection
If Manual mode is selected in the Key Management field, enter a
16 hexadecimal digits manual encryption key for encryption. Manual Encryption
Key
Enter a 32 hexadecimal digit unique authentication key to be
used by IPSec. Manual
Authentication Key
Enter a unique SPI (Security Parameter Index) for inbound SPI. Inbound SPI
Outbound SPI
Enter a unique SPI (Security Parameter Index) for outbound
SPI.
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