Intellinet 522205 User Manual page 49

An example for the TFTP client updating the vxworks.z product image code is:
DMZ: A DMZ (De-Militarized Zone) is added between a protected network and an
external network, in order to provide an additional layer of security. When there is a
suspected packet coming from WAN, the firewall will forward this packet to the DMZ
host.
DMZ Host IP: The IP address of the DMZ host at LAN side.
DHCP Relay: If it is enabled, the DHCP requests from local PCs will forward to the
DHCP server runs on WAN side. To have this function working properly, please disable
the NAT to run on router mode only, disable the DHCP server on the LAN port, and
make sure the routing table has the correct routing entry.
DHCP Target IP: The DHCP server runs on WAN side.
IGMP Proxy: Here is the global setting for IGMP Proxy. If it is enabled, then the
enabled IGMP Proxy on WAN PVCs will be working. Otherwise, no WAN PVC can
have IGMP Proxy working on it.
PPP connect on WAN access: If it is enabled, the PPP session will be automatically
established when there is a packet wants to go out the WAN.
PPP Half Bridge: When the PPP Half Bridge is enabled, only one PC is able to access
the Internet, and the DHCP server will duplicate the WAN IP address from the ISP to the
local client PC. Only the PC with the WAN IP address can access the Internet.
Q: What is the difference between PPP connect on WAN access and the Automatic
Reconnect?
A: Some ISPs terminated the PPP session due to the inactivity.
For the PPP connect on WAN access, the PPP will be automatically reconnected when
an URL is entered in the browser (packet interested in going out the WAN). For the
Automatic Reconnect, it will reconnect the PPP session whenever it is terminated by
ISP.
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