Zilog EZ80F91GA Manual do Utilizador descarregar pdf (Página 95)

UM024502-1012 ZGATE Logging Page

ZGATE Embedded Security Development Kit

User Manual

ZGATE_add_ip_prot

Function Prototype

INT16 ZGATE_add_ip_prot( INT32 IP_Prot );

Parameters

IP_Prot IP protocol number to be added to the IP Protocol number static

filtering list. The value of

IP_Prot must be between 1 and 254.

Return Value

TRUE IP_Prot was successfully added to the IP Protocol number static

filtering list.

FALSE IP_Prot is invalid, already exists in the IP Protocol static filter-

ing list, the list is full or the IP Protocol filter is disabled.

Description

When the IP Protocol filter is operating in WHITELIST (forwarding) or BLACKLIST

(blocking) Mode, it extracts the IP protocol field from inbound IP packets and compares it

to entries in the IP Protocol number static filtering list. If a match is found, the frame is

forwarded to ZTP if the IP Protocol filter operates in WHITELIST Mode and blocked

from TCP if the filter operates in BLACKLIST Mode.

This API is used to add an entry to the IP protocol static filtering list. Entries cannot be

added to the list if the IP protocol filter is disabled.

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