Zilog EZ80F91GA Manual de usuario descargar pdf (Pagina 96)

ZGATE API Reference UM024502-1012

ZGATE Embedded Security Development Kit

User Manual

ZGATE_remove_ip_prot

Function Prototype

INT16 ZGATE_remove_ip_prot( INT32 IP_Prot );

Parameters

IP_Prot IP protocol number to be removed from 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, does not exist in the IP Protocol static filter-

ing list 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 remove an entry from the IP protocol static filtering list. Entries cannot

be removed from the list if the IP protocol filter is disabled.

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Zilog EZ80F91GA Manual de usuario Pagina 96