RE: iSeries email routing problem

Jim,

I find this odd too. While I'm no networking expert, normally it's pretty
straightforward.

Can you ping any other sites from your i? google.com? yahoo.com? Are you
sure AT&T is running on port 25? (For example, I use google for my email
and they use SSL so it's using a different port).

Bradley V. Stone
BVSTools - www.bvstools.com
eRPG SDK - www.erpgsdk.com

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Jim Franz
Sent: Thursday, October 09, 2008 3:11 PM
To: Midrange Systems Technical Discussion
Subject: Re: iSeries email routing problem


The smtp.xyz.com is AT&T hosting the email on their servers.
The vpn is split, so ipconfig shows my own pc.
The same iSeries is hosting web traffic on xyz.com
I think the problem will be in AT&T managing the routers,
but my last call they assured me nothing blocked going out.
I have 2 routes set up on iSeries, one for each router.
At the time it was set up 5 years ago, they could not handle
vpn on the main T1, so they dropped in the dsl for vpn traffic.
I've tried the ping from iSeries on each interface.
Jim

----- Original Message -----
From: <tkreimer@xxxxxxxxxxxxxxx>
To: "Midrange Systems Technical Discussion" <midrange-l@xxxxxxxxxxxx>
Sent: Thursday, October 09, 2008 3:21 PM
Subject: Re: iSeries email routing problem

Is your VPN a split tunnel? Does it tunnel everything to your

network, or

only local traffic, sending the rest to the Internet. Traceroute would
tell you. May explain why it works for you.

Is smtp.xyz.com on the Internet? Do you have access? A netstat on that
side might show port 25 opening, proving if it s a problem

routing there,

or back.

Two routers, eh? No firewall inside the network but is there one on the
edge? Asymmetric routes are perfectly legal on the Internet, but many
(stateful packet inspection) firewalls will detect this and

will shut the

traffic down. Make sure you are routing out on the same network as the
inbound interface. You can add a host route smtp.xyz.com/255.255.255.255
to test.
===============================================
Tom Kreimer
Network Manager
Buckhorn Inc, Milford OH

iSeries cannot telnet on port 25 to smtp.xyz.com or by it's ip

address, or

ping it.
My pc can do all of the above (I'm vpn into network).
I have domain names set up 70.150.xx.xx smtp.xyz.com
We have two routers - one to T1, one to dsl.
Both routes working fine, in fact http server xyz.com working fine.
Both managed by AT&T - they claim nothing wrong and no blocking of
internal traffic going out.
Using bvstools mailtool with authentication, not the ibm smtp.
v5r4 w/latest cume
Nothing special set up. No firewall inside network.
pulling my hair out..
Jim Franz
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