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dslaughter1's profile

Teacher

 • 

10 Messages

Thu, Sep 28, 2017 8:54 PM

5268ac Firewall Configuration is not working

I've got the 5 usable statics.  I use a linux server to act as my router.  The linux server is also a web and mail server plus some other services.

 

I've configured the 5268ac to put the linux server in dmzplus mode so it should be open in and out.  Everything has been working but I found my mail server cannot connect to any outside mail server.  They all time out.  If I do a tcproute it stops at the 5268ac and goes no further.

 

I went into firewall advanced configuration and checked all services under outbound protocol control.  I couldn't understand why something open would need to be opened.  🙂  Then rebooted.

 

All the mail servers still timeout.

connect to alt1.gmail-smtp-in.l.google.com[173.194.208.26]:25: Connection timed out

 

Here is the tcproute

tcproute -i 1 -p 25 alt1.gmail-smtp-in.l.google.com
Ensuring gateway address (xxx.xxx.xxx.xxx) is in arp... OK!

Using the following values:
---------------------------
Local IP:    xxx.xxx.xxx.xxx
Local MAC:   D0:50:99:CD:A3:F7
Gateway MAC: B8:97:5A:87:BF:D4
Remote IP:   173.194.199.26

Tracing route to alt1.gmail-smtp-in.l.google.com:25
  1        31 ms        linux-server-router [xxx.xxx.xxx.xxx.]    TimeExceeded
  2         1 ms        att5268ac [xxx.xxx.xxx.xxx]  TimeExceeded
  3      2002 ms        timed out
  3      2001 ms        timed out
  3      2001 ms        timed out
  4      2001 ms        timed out
  4      2001 ms        timed out
  4      2001 ms        timed out

 

Any ideas on why the firewall is not working as configured?  Did I configure myself into a corner?

 

Community Support

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2.7K Messages

5 years ago

Hi @dslaughter1,

 

Sorry to read of the trouble you are having. This sounds like a port 25 item. By chance, do you have a business account?

 

ChrisZ, AT&T Community Specialist

 

Teacher

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10 Messages

5 years ago

Thank you for responding. 

 

no, residential.  att uverse internet support confirmed modem is configured correctly.  Need to find somebody at att that can view traffic coming out of the modem to verify it is being blocked by the modem or something else.  So far that person does not exist.  So I'm sure it will never be fixed.

Community Support

 • 

2.7K Messages

5 years ago

Hi @dslaughter1,

 

Gotcha. You had a business account, port 25 automatically open. To address, you will need to contact our ConnecTech Team. 

 

ChrisZ, AT&T Community Specialist 

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