Hello Christian,
Many thanks for the quick reply. As it happens yesterday the ISP assigned
us a new IP address (with less than a day's notice) and after that the
first problem (accessing certain websites) has gone.
I did try however to set up a new PPPoE with a MTU of 1400 but it hasn't
helped with the two issues (MSN and Outlook email).
The IPSO version is 3.8 BUILD039, so it is older than the affected version.
Will appreciate any other suggestions.
Thanks!
Huiqi
Christian Köhler
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30/07/2008 09:32
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Dear Huiqi,
I can be a problem related to MTU. From IPSO 3.8-build 049 can lower the
MTU. Nokia suggest a value of 1400 (Nokia Knowledgebase: Vantive
Resolutions ID: 1128905).
Hope this helps,
Christian
-----Ursprüngliche Nachricht-----
Von: Mailing list for discussion of Firewall-1
[mailto:[EMAIL PROTECTED] Im Auftrag von Huiqi
Liu
Gesendet: Mittwoch, 30. Juli 2008 09:59
An: [email protected]
Betreff: [FW-1] Strange problem
Sorry I can't be more specific on the subject line!
Recently we have set up a new branch office firewall, with a Nokia IP130,
running NG AI R55p, IPSO 3.8, with ADSL connection (PPPoE) to the internet.
There are about 10 users in the office who are connected a switch which
connects to an interface on the Nokia.
We have set up VPNs between that office and other locations, and that works
fine.
The problem is:
Since the firewall install, 5 or 6 laptops have these problems:
Accessing certain websites (e.g., microsoft.com, and some other sites,
e.g., www.sina.net)
Accessing MSN
Accessing Hotmail
Intermittent problems accessing pop3 email using Outlook Express
2 users don't have any of the problems above. And the curious thing is
that these two users were in the office with their laptops when the
changeover occurred, though there is a desktop in the office at the same
time but that has the same problems above.
Before the firewall was installed, the switch was connected directly to the
ADSL router, and there were no such problems.
The firewall logs all look fine: outgoing requests from the problem laptops
were shown to be accepted like the rest.
I'm really lost as to what might have caused these. Any ideas would be
much appreciated!
Huiqi
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