It looks like you either have the email proxy
(BASIC CONFIGURATION->EMAIL PROXY) or the filter email server
(FILTERS->PREFERENCES->EMAIL SERVER) mis-configured with the
GNAT Box's own IP address.

If your email is coming through OK, then I'd bet on the
second one...


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Matthew Tetzlaff
Sent: Wednesday, February 23, 2000 5:44 PM
To: [EMAIL PROTECTED]
Subject: Strange happenings on our Gnatbox..


Send postings to: [EMAIL PROTECTED]
Access the list archives at:
http://www.gnatbox.com/gb-users/
----------------------------------
Hi all,

I'd appreciate hearing from anyone you could help me diagnose what's
going on here... it doesn't _appear_ to be affecting the rest of Gnatbox
or access to/from it but...   I hate things I can't fix!

I am getting some strange filter alarms where it appears that an Aliased
IP address is making a call back onto itself...  (at least that's the my
interpretation of it!)


I have included a copy of the filter alarm below:
----------------------------------------------------------------------------
-

NOTIFICATION TYPE: GNAT Box FILTER ALARM
NAME: *****
CONFIGURATION: EXT=210.55.93.213 PRO=192.168.4.6 PSN=10.1.1.1
----------------------------------------------------------------------------
-

ALARM NO: 43
DATE: Saturday, Feb  5, 2000
TIME: 22:45:05
INTERFACE: lo0
ALARM TYPE: Block
IP PACKET: TCP  [210.55.93.211/3884]-->[210.55.93.211/25]  l=0 f=0x2

[smtp.logistics.co.nz/3884]-->[smtp.logistics.co.nz/25]

DETAILED DESCRIPTION:
        IP packet was rejected.



The IP address 210.55.93.211 is set as an alias on the external NIC and
I have checked my tunnels and filters and they seem OK. Relavant bits
are below...

- Inbound tunnel for TCP 210.55.93.211/port 25 through to 10.1.1.21/port
25 (email server on PSN)
- Allow the Internet access to Asset's Email Servers       Accept EXT
TCP
   from 0.0.0.0/0.0.0.0  to 210.55.93.208/255.255.255.248 25 110  (I
have a couple of email servers on differnet IP address' - this seemed
the logical way to do this...)



Any help would be greatly appreciated.

TIA


Oh...    Gnatbox version 2.2.0

 Matthew Tetzlaff


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