From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Fri Jan 19 2007 - 18:21:53 ART
With the "autocommand access-enable" command under the VTY line
the router will interpret all telnet traffic as an attempt to open up
the dynamic ACL. If you use the "autocommand access-enable" at the
username level you can telnet to the router for management or for the
dynamic ACL. You can also use the "rotary" command under the VTY line
(or NAT if you want to get fancy) to change what port the router is
listening for management telnet traffic at.
HTH,
Brian McGahan, CCIE #8593 (R&S/SP)
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Faryar Zabihi (fzabihi)
Sent: Friday, January 19, 2007 10:06 AM
To: Shamin; Cisco certification
Subject: RE: IEWB LAB 10 Ver3.0 VOL 1 - TASK 9 (Lock & Key)
The requirement has to do with RDP(tcp port 3389) The task wants user
to authenticate before they can RDP to server. The dynamic entry is
tied to the authenticated user only. So I think the requirement is
fulfilled. It never says you need to stop IP traffic just authenticate
before allowing RDP
My 2 cents
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Shamin
Sent: Friday, January 19, 2007 11:06 AM
To: Cisco certification
Subject: IEWB LAB 10 Ver3.0 VOL 1 - TASK 9 (Lock & Key)
Dear Friends,
The scenario is as below.
R4 (e0/0)<-------------->(FA0/4) SW1( VLAN7)----->164.1.7.0/24
164.1.47.0
Q) Configure your network so that your administrator must authenticate
to
Sw1 using the username RDP and the password CISCO prior to using the
remote desktop connection on a windows swrver on vlan 7
- Once he has authenticated to sw1 he alone should be able to acces
the server in this manner.
- The windows server's IP address is 164.1.7.100
- Remote desktop connection is listening at the default TCP port of
3389
- To avoid a hikacking of the users active session , ensure that they
must
re- authenticate to sw1 every 10 minutes.
A)
SW1#
username RDP password CISCO
interface Vlan7
ip address 164.1.7.7 255.255.255.0
interface FastEthernet0/4
no switchport
ip address 164.1.47.7 255.255.255.0
ip access-group SECURITY in
ip access-list extended SECURITY
dynamic REMOTE->DESK permit tcp any host 164.1.7.100 eq 3389
deny tcp any host 164.1.7.100 eq 3389
permit ip any any
line vty 0 4
password cisco
login local
autocommand access-enable host timeout 10
------------------------------------------------------------------------
-------
Now the question I have is , will this access-list "SECURITY" i have
configured on SW1, deny telnet access from R4 to Sw1 , If R4 tries to
telnet SW1 on 164.1.47.7 port 23 .
As per the solution guide , it says that after the above config, other
Network admins can no longer telnet to sw1 to manage it remotely.
I am a bit confused here, as the access-list is only blocking access to
the particular IP on the particular port and permiting ip any any.
So this should not block other telnet sessions to sw1.
I am not sure if i am missing anything here. Please advice
This archive was generated by hypermail 2.1.4 : Thu Feb 08 2007 - 23:46:57 ART