From: Scott Morris (swm@emanon.com)
Date: Sun Oct 26 2003 - 22:05:06 GMT-3
Cisco has always used port 2065 as the destination. For the earlier
RFC's, the messages were sourced from port 2067. Then they kept with
the times and used the updated RFC (recommendation, yes) in order to
source FROM a tcp port randomized anywhere from 11000 to 11999. but the
destination port has remained the same going to 2065.
You are correct about the 1981, 1982 and 1983 if prioritization is
configured. These will be the destination ports though.
HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
CISSP, JNCIS, et al.
IPExpert CCIE Program Manager
IPExpert Sr. Technical Instructor
swm@emanon.com/smorris@ipexpert.net
http://www.ipexpert.net
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Brian McGahan
Sent: Sunday, October 26, 2003 1:27 PM
To: adminl@kuix.com; ccielab@groupstudy.com
Subject: RE: DLSW port 2067( no more used)
Remember that an RFC is just a recommendation, and does not
necessarily reflect a specific vendor's implementation. Cisco uses TCP
port 2065 for DLSw+. Ports 1981-1983 may also be used if DLSw+
prioritization is configured.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 708-362-1418 (Outside the US and Canada)
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> adminl@kuix.com
> Sent: Sunday, October 26, 2003 3:51 AM
> To: ccielab@groupstudy.com
> Subject: DLSW port 2067( no more used)
>
> my friend inform that the TCP port of DLSW (2067) is the source port
per
> the original RFC. Later RFC's replaced that with a high random port
> between 11000 and 11999. So we will not use 2067 any longer.
>
> So when we use access-lsit to permit dlsw port
>
> Extended IP access-list DLSW-IN
> permit tcp any any range 11000 11999
> permit tcp any range 11000 11999 any
>
> Any comments?
>
>
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