RE: snmp question- please I need answer

From: "Thomas W Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Date: Tue, 11 Mar 2003 19:50:53 -0600
Hi Hanan,
 
What problem are you having?
 
Thanks!
Tom
Thomas W Shinder 
www.isaserver.org/shinder 
ISA Server and Beyond: http://tinyurl.com/1jq1 
Configuring ISA Server: http://tinyurl.com/1llp 
        -----Original Message-----
        From: hanan [mailto:nouran@xxxxxxxxx] 
        Sent: Tuesday, March 11, 2003 3:40 AM
        To: [ISAserver.org Discussion List]
        Subject: [isalist] snmp question- please I need answer
        
        
        http://www.ISAserver.org
        
        
         
        Hello
        I have sent this email to the company that provide this snmp
program, and they answered me as the following:
         
        I am running an snmp monitor to check devices in a network
behind a firewall.  SNMP traps seem to work ok (port 162).  When,
however, I try to poll an object (I have a VPN to the network by the way
to access the internal addresses, but the devices must respond to the
external address of the SNMP Monitor) I get response time out.  When I
check the network traffic I find that the responding device source is
using UDP port 161 to send but seems to vary the destination UDP port
(I am getting 3459, 1902, 2837, 2874, 1731, 1064, 1561, 1509, and some
more) and I never find the querying device.  How do I go about
convincing a firewall to open all these ports for sending?
         
         
        Thanks in advance.
        Hanan
         
        The destination port will always be UDP port 161 when coming
from the SNMPc. You should configure your firewall to allow packets that
have UDP port 161 in either the source or destination port. As to how to
do this, consulting the company that made the firewall would probably be
your best source of information.
         
        Could you please explain to me what is that mean
         
        Is that mean that I need to allow port udp 161 for send and
receive and that what I did also but still doesn't work, or there is
other solution that I didn't understand from this email?
         
        Best regards
        hanan
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RE: snmp question- please I need answer

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