Avaya BayRS Version 15.5.0.0 Uživatelský manuál stáhnout pdf (Strana 99)

Configuring Traffic Filters and Protocol Prioritization

314470-15.5 Rev 00 13-15

Specifying Protocol Identifiers As Match Criteria

Internet Protocol Version 4 (IPv4) specifies an 8-bit protocol field to identify the

next-level protocol. You can use the protocol field to identify traffic that you want

to accept or drop.

If you specify a protocol other than TCP or UDP, the software prevents you from

filtering on the TCP or UDP source or destination. Otherwise, the offset

associated with one of the parameters in the non-UDP/TCP packet could

coincidentally match the filter, and the software would perform the filter’s action.

To filter traffic using the protocol field, navigate to the match-ip-ip prompt (for

example,

box; serial/3/1; protocol-priority; ip-outbound-filter <filter_name>);

match-ip-ip) and enter the following command:

pri-ip-ip-protocol {<list_of_protocols>}

list_of_protocols can include any number of protocol identifiers. It can also

specify ranges of protocol identifiers.

Table 13-4 lists some common protocol ID codes for IP traffic.

Note: If you filter on a TCP or UDP source or destination, the software

automatically changes the value to the protocol number associated with TCP

or UDP.

Table 13-4. Common Protocol IDs for IP Traffic

Protocol ID Code (Decimal)

ICMP (Internet Control Message Protocol) 1

IGMP (Internet Group Management Protocol) 2

TCP (Transmission Control Protocol) 6

EGP (Exterior Gateway Protocol) 8

IGP (Interior Gateway Protocol) 9

UDP (User Datagram Protocol) 17

RSVP (Resource Reservation Protocol) 46

GRE (Generic Routing Encapsulation) 47

NHRP (Next Hop Resolution Protocol) 54

OSPF (Open Shortest Path First) 89

1 2 ... 94 95 96 97 98 99 100 101 102 103 104 ... 197 198

Žádné komentáře

Avaya BayRS Version 15.5.0.0 Uživatelský manuál Strana 99