Obihai OBi100, Administration Manual

Page: 72 / 220

Copyright 2010-2013 Obihai Technology, Inc. 72
Firewall and DMZ
Firewall and DMZ apply only when the OBi is set to work in the router mode. The firewall filters incoming packets from the
WAN side only. It provides protection against some threats from the WAN side. There is a global firewall enable option
which, when disabled, disables all the firewall components. In addition, the three firewall related features, NATRedirection,
DRDOSAttackProtection, and VPNPassThrough, will take effect only If firewall is enabled. Below is a screen shot of the
Firewall and DMZ device web page.
Firewall and DMZ Parameter Guide:
Parameter Description
Default
Setting
Firewall Settings
Enable Enable the firewall No
NATRedirection
Support NATRedirection (a.k.a. NAT Loopback or Hairpin). This setting takes
effect only if firewall is enabled; otherwise this feature is
disabled
No
DRDOSAttackProtection
Enable the protection against Distributed Reflection Denial of Service. This
setting takes effect only if firewall is enabled; otherwise this feature is
disabled
No
VPNPassThrough
Allow VPN (L2TP, PPTP and IPSEC) traffic to pass through if enabled;
otherwise all VPN traffic are blocked. This setting takes effect only if firewall
is enabled; otherwise this feature is
enabled
Yes
DMZ Settings
Enable Enable DMZ Service No
HostIPAddress The IP address of the DMZ server