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Re: using an alternate port with Cisco's secure copy (scp)
From: Cody Dumont <CDumont () nwnit com>
Date: Sat, 14 Aug 2010 10:45:51 -0400

Here is the config to change the SSH port, thereby changes the SCP port...

The lab build is two routers back to back using GNS3, running 2691 - Cisco IOS Software, 2600 Software 
(C2691-ADVIPSERVICESK9-M), Version 12.4(15)T8, RELEASE SOFTWARE (fc3)

r1 = SCP server
r2 = SCP client


#############  change the host name and enter a domain name
hostname r1
ip domain name name.com<http://name.com>

#############  Generate the RSA key
crypto key generate rsa

#############  setup a user name for login
username cisco privilege 15 password 0 cisco

#############  change the SSH port and assign a rotary group
#############  The rotary group is mostly used for Async ports, but can also be used with VTY ports.
ip ssh port 2200 rotary 1
ip ssh version 1

#############  define an IP address
interface FastEthernet0/0
 ip address 192.168.1.1 255.255.255.0

#############  enable the SCP service on the router
ip scp server enable

#############  modify the VTY config to be a member of the rotary group and allow ssh transport
line vty 0 5
 login local
 rotary 1
 transport input ssh


#############  from "r2" test the SSH login

r2#ssh -l cisco -p 2200 192.168.1.1
Password: <enter cisco for the password>
r1#exit  <-------- close connection
[Connection to 192.168.1.1 closed by foreign host]
r2#

#############  Now try the SCP...

r2#copy startup-config scp://192.168.1.1:2200/new.txt    <------------  note the port....
Address or name of remote host [192.168.1.1]?   <----------  note there is no port..that is ok....
Destination username [r2]? cisco
Destination filename [new.txt]?
Writing new.txt
Password: <enter cisco for the password>
!
723 bytes copied in 10.832 secs (67 bytes/sec)
r2#

#############  now verify the copy on the "r1" router
r1#dir
Directory of flash:/

    1  -rw-         723                    <no date>  new.txt

16777212 bytes total (16776424 bytes free)
r1#


Done.....I hope this helps....


Cody B Dumont

CISSP, CCSP, CCIP, CCNP, RSA enVision CSE, MCSE, CNE
NWN STAR  - Senior Security Consultant
603.785.2665 mobile l cdumont () nwnit com<x-msg://46/cdumont () nwnit com>

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