RE: well known port numbers

From: Simon Baxter (Simon.Baxter@xxxxxxxxxxxxxx)
Date: Thu Sep 07 2000 - 21:28:40 GMT-3


   
How about :
2520(config)#access 101 per tc any eq ?
  <0-65535> Port number
  bgp Border Gateway Protocol (179)
  chargen Character generator (19)
  cmd Remote commands (rcmd, 514)
  daytime Daytime (13)
  discard Discard (9)
  domain Domain Name Service (53)
  echo Echo (7)
  exec Exec (rsh, 512)
  finger Finger (79)
  ftp File Transfer Protocol (21)
  ftp-data FTP data connections (used infrequently, 20)
  gopher Gopher (70)
  hostname NIC hostname server (101)
  ident Ident Protocol (113)
  irc Internet Relay Chat (194)
  klogin Kerberos login (543)
  kshell Kerberos shell (544)
  login Login (rlogin, 513)
  lpd Printer service (515)
  nntp Network News Transport Protocol (119)
  pim-auto-rp PIM Auto-RP (496)
  pop2 Post Office Protocol v2 (109)
  pop3 Post Office Protocol v3 (110)
  smtp Simple Mail Transport Protocol (25)
  sunrpc Sun Remote Procedure Call (111)
  syslog Syslog (514)
  tacacs TAC Access Control System (49)
  talk Talk (517)
  telnet Telnet (23)
  time Time (37)
  uucp Unix-to-Unix Copy Program (540)
  whois Nicname (43)
  www World Wide Web (HTTP, 80)

2520(config)#access 101 per tc any eq
% Incomplete command.

and

2520(config)#access 101 per udp any eq ?
  <0-65535> Port number
  biff Biff (mail notification, comsat, 512)
  bootpc Bootstrap Protocol (BOOTP) client (68)
  bootps Bootstrap Protocol (BOOTP) server (67)
  discard Discard (9)
  dnsix DNSIX security protocol auditing (195)
  domain Domain Name Service (DNS, 53)
  echo Echo (7)
  isakmp Internet Security Association and Key Management Protocol
(500)
  mobile-ip Mobile IP registration (434)
  nameserver IEN116 name service (obsolete, 42)
  netbios-dgm NetBios datagram service (138)
  netbios-ns NetBios name service (137)
  netbios-ss NetBios session service (139)
  ntp Network Time Protocol (123)
  pim-auto-rp PIM Auto-RP (496)
  rip Routing Information Protocol (router, in.routed, 520)
  snmp Simple Network Management Protocol (161)
  snmptrap SNMP Traps (162)
  sunrpc Sun Remote Procedure Call (111)
  syslog System Logger (514)
  tacacs TAC Access Control System (49)
  talk Talk (517)
  tftp Trivial File Transfer Protocol (69)
  time Time (37)
  who Who service (rwho, 513)
  xdmcp X Display Manager Control Protocol (177)

2520(config)#access 101 per udp any eq

?????

What about common LSAP numbers and Type codes, IPX SAP types and AT socket
numbers?

-----Original Message-----
From: Frye, Gary [mailto:Gary.Frye@getronics.com]
Sent: Thursday, September 07, 2000 10:48 PM
To: 'earl@linkline.com'
Cc: 'ccielab@groupstudy.com'
Subject: RE: well known port numbers

I thought he just wanted to have a list as a general reference, he doesn't
mention needing it for access lists... You're right that the lab isn't the
correct place to find yourself digging around for those port numbers.

but even so, why wouldn't he be able to get to that file during the exam?
Every Windows computer that has an IP stack has to have it. (for Win9x it is
c:\windows\services)... I don't know, I've never looked to see if the lab
computers have an IP stack (it's possible they don't since the rack is
configured over a console cable/AS router).

Gary Frye, Team34 - Network Services
> Phone: (704) 427-0564
> Pager: (800) 504-8567
> Fax: (704) 590-7477
> gary.frye@getronics.com

-----Original Message-----
From: Earl Aboytes [mailto:earl@linkline.com]
Sent: Thursday, September 07, 2000 1:43 AM
To: Frye, Gary; ccielab@groupstudy.com
Subject: RE: well known port numbers

I don't think that you can get to that file during the test. The best thing
to do is the deny all log at the end so that you will notice any traffice
trying to get through your access list.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Earl Aboytes CCIE #6097
Senior Technical Consultant
GTE Managed Solutions
805-381-8817
earl.aboytes@verizon.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of Frye,
Gary
Sent: Wednesday, September 06, 2000 11:59 AM
To: 'ccielab@groupstudy.com'
Subject: RE: well known port numbers

A good, overlooked place for well-known port numbers is a file on
WinNT/Win2000 machines. That file is c:\winnt\system32\drivers\etc\services

Likewise, if you have to statically define new port numbers for WinNT
machines, this is the file to do it in.

Gary Frye, Team34 - Network Services
> Phone: (704) 427-0564
> Pager: (800) 504-8567
> Fax: (704) 590-7477
> gary.frye@getronics.com

-----Original Message-----
From: Gary Frye [mailto:gfrye@carolina.rr.com]
Sent: Friday, August 25, 2000 10:13 AM
To: gary.frye@getronics.com
Subject: well known port numbers

Is there a good spot on the doc cd that shows a table of the well known
TCP/UDP port numbers?
Thanks,

Aaron DuShey



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