User's Manual

Wireless ADSL Router USER MANUAL
14
Item
Description
VPI/VCI
Enter the PVC that your ISP gives you.
Enable NAPT
NAPT extends the notion of NAT one step further by also translating
the transport identifier (eg TCP and UDP port numbers, ICMP query
identifiers). This allows the transport identifiers of a number of
private hosts to be multiplexed into the transport identifiers of a
single public IP address.
Enable IGMP
IGMP(Internet Group Management Protocol) is a network-layer
protocol used to establish membership in a Multicast group- it is not
used to carry user data. IGMP version 2 (RFC 2236) is an
improvement over version 1 (RFC 1112) but IGMP version 1 is still