topic Re: Proto in packet capture filter in General Topics

Proto in packet capture filter

dieter_b — Thu, 30 May 2013 07:27:59 GMT

What is proto in packet capture filter ? The manual only says:

Proto—Specify the protocol to filter

The field only seems to accept numbers...

Re: Proto in packet capture filter

TheSquire — Thu, 30 May 2013 08:17:26 GMT

Hi,

You need to enter the protocol number e.g. tcp is 6 etc.

Re: Proto in packet capture filter

dieter_b — Thu, 30 May 2013 08:23:00 GMT

Great, thanks. PA should have been clearer on that. Or they could present the protocols that apply in a dropdown...

Re: Proto in packet capture filter

craymond — Tue, 18 Mar 2014 21:15:11 GMT

Here is a document that gives a little detail:

Using the Proto Filter in Packet Capture

Re: Proto in packet capture filter

nicoleannep — Thu, 05 Sep 2024 09:41:43 GMT

access denied to the link you shared

Re: Proto in packet capture filter

KWIlson01 — Fri, 22 Aug 2025 13:38:10 GMT

Here you go fam;
- https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml

Decimal

Keyword

Protocol

IPv6 Extension Header

Reference

HOPOPT

IPv6 Hop-by-Hop Option

[RFC8200]

ICMP

Internet Control Message

[RFC792]

IGMP

Internet Group Management

[RFC1112]

GGP

Gateway-to-Gateway

[RFC823]

IPv4

IPv4 encapsulation

[RFC2003]

Stream

[RFC1190][RFC1819]

TCP

Transmission Control

[RFC9293]

CBT

[Tony_Ballardie]

EGP

Exterior Gateway Protocol

[RFC888][David_Mills]

IGP

any private interior gateway (used by Cisco for their IGRP)

[Internet_Assigned_Numbers_Authority]

BBN-RCC-MON

BBN RCC Monitoring

[Steve_Chipman]

NVP-II

Network Voice Protocol

[RFC741][Steve_Casner]

PUP

[Boggs, D., J. Shoch, E. Taft, and R. Metcalfe, "PUP: An Internetwork Architecture", XEROX Palo Alto Research Center, CSL-79-10, July 1979; also in IEEE Transactions on Communication, Volume COM-28, Number 4, April 1980.][[XEROX]]

ARGUS (deprecated)

ARGUS

[Robert_W_Scheifler]

EMCON

[Bich_Nguyen]

XNET

Cross Net Debugger

[Haverty, J., "XNET Formats for Internet Protocol Version 4", IEN 158, October 1980.][Jack_Haverty]

CHAOS

Chaos

[J_Noel_Chiappa]

UDP

User Datagram

[RFC768][Jon_Postel]