[squid-users] squid iptables snmp

Dear all,

I dont know wheather this problem is related to squid or iptables
netfilter.
But let me specify my problem. I tried my lots but i cant solve this
problem.
                
                
Mrtg server Squid + Netfilter box Mikrotik Router

When I try to create mrtg for mikrotik router which is behind Squid +
netfilter box, it gives me this error.

---------------------------------------------------------------------------
-base: Get Device Info on public@202.202.202.202:
SNMP Error:
no response received
SNMPv1_Session (remote host: "202.202.202.202" [202.202.202.202].161)
                  community: "public"
                 request ID: 1723286139
                PDU bufsize: 8000 bytes
                    timeout: 2s
                    retries: 5
                    backoff: 1)
 at /usr/bin/../lib/mrtg2/SNMP_util.pm line 450
SNMPGET Problem for sysDescr sysContact sysName sysLocation sysObjectID
on public@202.202.202.202:
 at /usr/bin/cfgmaker line 657
--base: Vendor Id:
--base: Populating confcache
---------------------------------------------------------------------------

If I removed squid + netfilter box then I tried to create mrtg for
mikrotik router then i can easily do it. It doesnt give me any error.

Now i dont know wheather Is this problem related to Netfilter Iptables
OR squid proxy server ????

I thought this might be iptables firewall problem so I just made the
netfilter + squid box iptable rules to INPUT OUTPUT FORWARD to ACCEPT.
So now it should work but it didnt.

Now i cant sort out where is the problem lying ...with iptables or with
squid or any thing else ...

Awaiting for Ideas to get the solution in urgent.

-- 
Joel N.Solanki
Network Administrator
Mobile: 91-9426353268
Phone No: 0265-550001/2/3/4/5 Ext: 211/212
Digtial 2 Virtual Internet Service Provider.
http://www.packetraptor.com/
http://www.d2visp.com/
Gujarat (India)