4 — ONT software and security features
4-12 July 2008 Alcatel-Lucent 7342 ISAM FTTU ONT R04.05.06
ONT Product Information Manual Edition 01 3FE 51892 AAAA TCZZA
When static or dynamic source address anti-spoofing is enabled, the LT card
downloads the static entries provisioned for an ONT UNI port to the ONT by way of
OMCI. When a static entry is removed or anti-spoofing is disabled, the LT card
notifies the ONT to remove the corresponding anti-spoofing filter(s).
When dynamic anti-spoofing is enabled, the LT card forwards the currently leased
IP addresses to the ONT by way of OMCI after an IP address is leased, or a DHCP
lease expires or is released. When a UNI port has reached its maximum allowed
number of IP source addresses, the LT card drops any subsequent DHCP ACKs with
a leased IP address that is not in the lease table. IP source addresses that are added
dynamically through DHCP survive ONT restarts, LT restarts, and NT switchovers.
See 7342 ISAM FTTU Operations and Maintenance Procedures Guide using TL1
and CLI for configuration information.
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