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Fuck AT&T

MaxPower

You're my number two
Staff
16,851
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#1
I recently had a number of remote users call me saying they can't send email through the company email server, but can receive. This resulted in me having to work 16 hours yesterday, and going without sleep for a total of 20.

In case you're wondering, it all has to do with TCP/IP standard port numbers. Port 25 for SMTP (Send) and port 110 POP3 (receive).
I quickly determined that somewhere the SMTP port 25 was being blocked. I also used a number of troubleshooting procedures to determine that the blocking was occurring off of our network. AT&T quickly denied any port blocking. So right now we still have a trouble ticket open for them to investigate it.

In order to get my remote users up again I had them all configure Outlook to send on a non standard (port 366). and configured my mail server to accept mail on that port as an alternate. I had to do that with each remote user, with the exception of our Corby, England office. To my delight, there was someone there that knew exactly what I was talking about, and agreed to handle it there.

Here's what my day consisted of:
After all the basic stuff like checking the firewall and router access-lists, I examined all settings on Email server. All email clients inside the router can freely send email over SMTP port 25. Shut down all Email security and spam filtering. <yell, curse, punch side of server enclosure, go outside pace and have a smoke>

Internal networking equipment is working fine, no VLANs in use on switches, all data is flowing freely. <yell, curse, Cisco 3548-XL-en switch, go outside pace and have a smoke>
Had Remote users, including users in Corby, England configure their clients to send mail on a non-standard Port 366 for SMTP. Users reported success in sending mail. <yell, curse, punch phone, go outside pace and have a smoke>

Logged into my home machine through a VNC session and Port scanned my mail server. All expected listening ports appeared except for port 25. <yell, curse, punch keyboard, go outside pace and have a smoke>

Attached a Hub between the gateway router and the switch. Plugged the email server and a sniffer into the hub. Attempted to send email from home on port 25 while running a 15 minute packet capture. No port 25 traffic was captured, but successful port 366 traffic was. <yell, curse, punch side of server enclosure where sniffer is located, go outside pace and have a smoke>

Bypassed firewall, shut off all security on gateway router. Nothing. Powered down gateway router, and swapped it out with a spare Cisco 2611 configured with bare minimum settings to allow it to interface and pass traffic to and from your network. I had absolutely no security services or, otherwise running. Only the minimum routing and NAT services to allow external traffic to access internal resources. Nothing! <yell, curse, Cisco 2611, go outside pace and have a smoke>

Called AT&T again (By now I'm like fuckit, so I'm smoking at my desk and flicking the ashes into stale 6 hour old coffee.) Fuckers still said there's no problem on their end.

Went the fuck home <Yelled, cursed, Punched steering wheel for 30 miles>

Now it's today and I am still waiting, after receiving and email that consisted of nothing more than "Your email has been referred to the technician working on your ticket."

Why do I envision, some tech sitting there playing counter strike.
:mfinger:
 
#2
MaxPower said:
I recently had a number of remote users call me saying they can't send email through the company email server, but can receive. This resulted in me having to work 16 hours yesterday, and going without sleep for a total of 20.

In case you're wondering, it all has to do with TCP/IP standard port numbers. Port 25 for SMTP (Send) and port 110 POP3 (receive).
I quickly determined that somewhere the SMTP port 25 was being blocked. I also used a number of troubleshooting procedures to determine that the blocking was occurring off of our network. AT&T quickly denied any port blocking. So right now we still have a trouble ticket open for them to investigate it.

In order to get my remote users up again I had them all configure Outlook to send on a non standard (port 366). and configured my mail server to accept mail on that port as an alternate. I had to do that with each remote user, with the exception of our Corby, England office. To my delight, there was someone there that knew exactly what I was talking about, and agreed to handle it there.

Here's what my day consisted of:
After all the basic stuff like checking the firewall and router access-lists, I examined all settings on Email server. All email clients inside the router can freely send email over SMTP port 25. Shut down all Email security and spam filtering. <yell, curse, punch side of server enclosure, go outside pace and have a smoke>

Internal networking equipment is working fine, no VLANs in use on switches, all data is flowing freely. <yell, curse, Cisco 3548-XL-en switch, go outside pace and have a smoke>
Had Remote users, including users in Corby, England configure their clients to send mail on a non-standard Port 366 for SMTP. Users reported success in sending mail. <yell, curse, punch phone, go outside pace and have a smoke>

Logged into my home machine through a VNC session and Port scanned my mail server. All expected listening ports appeared except for port 25. <yell, curse, punch keyboard, go outside pace and have a smoke>

Attached a Hub between the gateway router and the switch. Plugged the email server and a sniffer into the hub. Attempted to send email from home on port 25 while running a 15 minute packet capture. No port 25 traffic was captured, but successful port 366 traffic was. <yell, curse, punch side of server enclosure where sniffer is located, go outside pace and have a smoke>

Bypassed firewall, shut off all security on gateway router. Nothing. Powered down gateway router, and swapped it out with a spare Cisco 2611 configured with bare minimum settings to allow it to interface and pass traffic to and from your network. I had absolutely no security services or, otherwise running. Only the minimum routing and NAT services to allow external traffic to access internal resources. Nothing! <yell, curse, Cisco 2611, go outside pace and have a smoke>

Called AT&T again (By now I'm like fuckit, so I'm smoking at my desk and flicking the ashes into stale 6 hour old coffee.) Fuckers still said there's no problem on their end.

Went the fuck home <Yelled, cursed, Punched steering wheel for 30 miles>

Now it's today and I am still waiting, after receiving and email that consisted of nothing more than "Your email has been referred to the technician working on your ticket."

Why do I envision, some tech sitting there playing counter strike.
:mfinger:
yeah i know, you told me. but that sucks
 

Jung

???
Premium
13,979
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#3
had some bad experience with at&t tier's, we'll never use them again. quest is where it's at :thumbsup: they always blame the problem on you, and as long as it's on your side of the demarc they don't have to do shit.
 

MaxPower

You're my number two
Staff
16,851
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487
#4
junglizm said:
had some bad experience with at&t tier's, we'll never use them again. quest is where it's at :thumbsup: they always blame the problem on you, and as long as it's on your side of the demarc they don't have to do shit.
That's just it. My t-shooting has revealed that the prob is on their side of the demarc.
 

dustinzgirl

Banned - What an Asshat!
26,094
178
0
#5
I have no idea what you are talking about, but I understand the frustration. On wed. all of our internal software shut down, making it unable to create or view a client account. yay. that was fun.
 

Descent

Hella Constipated
7,686
109
157
#6
Wow...I actually understood what you said 100%. Guess I know more about networking that I thought I did.

Yes, big telecom companies suck dick. I would switch providers.
 

MaxPower

You're my number two
Staff
16,851
3,349
487
#7
jstager said:
Wow...I actually understood what you said 100%. Guess I know more about networking that I thought I did.

Yes, big telecom companies suck dick. I would switch providers.
I wish it was as easy as just switching providers.
Yes, I could do that but then I would:

- loose my whole current block of 128 routable addresses.
- Need to make numerous DNS changes.
- Reconfigure all my access lists and my NAT pool on the internet gateway and firewall.
- Redistribute and support a new Citrix/Terminal services/VPN client config to all the clients that connect across our VPN.
- Wait for the new service provider to install 2 new T1 circuits. That right there can take a month or so.

Do you feel my pain yet?
 

Descent

Hella Constipated
7,686
109
157
#8
Yes...I feel your pain.

That really sucks.
 

MaxPower

You're my number two
Staff
16,851
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487
#9
UPDATE:

In my lack of sleep/haven’t had lunch yet @ 3:46PM daze, I had a vision; a waking dream if you will.

I saw myself walking down the hallway of an AT&T NOC. I saw a white hors with an enormous bloody gash in his torso. I turned the corner and entered the Call center. There I saw an AT&T tech support rep, slumped over in his chair. He had a dagger protruding from his back with the initials MP inscribed on the ornate ivory handle. :sword:

Does anyone have insight to what this may mean? Heh, weird.
 

Paul

Tenderony
138
1
0
#10
MaxPower said:
I wish it was as easy as just switching providers.
Yes, I could do that but then I would:

- loose my whole current block of 128 routable addresses.
- Need to make numerous DNS changes.
- Reconfigure all my access lists and my NAT pool on the internet gateway and firewall.
- Redistribute and support a new Citrix/Terminal services/VPN client config to all the clients that connect across our VPN.
- Wait for the new service provider to install 2 new T1 circuits. That right there can take a month or so.

Do you feel my pain yet?
hah!
we just switched over from oarnet to time warner telecom and we have around 10 class c's.... it really wasnt as bad as you'd think ;)
 
10,772
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#11
He died from Mini Penis. Tsk tsk. This kind of thing happens alot to worthless fucks who put you on hold for seven hours straight.
 

MaxPower

You're my number two
Staff
16,851
3,349
487
#12
Paul said:
hah!
we just switched over from oarnet to time warner telecom and we have around 10 class c's.... it really wasnt as bad as you'd think ;)
Gimme their number.
 

betrayed

Banned - What an Asshat!
1,782
0
0
#13
Yeah I hate AT&T, they gave me "free" downloads but charged me $2.00 to get them sent to me. Usually it costs $2.00 and $0 for sending stuff to me. Their service and coverage also suck ass.. Down with AT&T :bomb:
 

Descent

Hella Constipated
7,686
109
157
#15
P99...I have AT&T for my cell phone and I get excellent coverage. Maybe your phone just has a shitty antenna...lots of them do. My dad's Siemens PocketPC phone has one of the worst antennas I have ever seen.
 

Jung

???
Premium
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#16
jstager said:
P99...I have AT&T for my cell phone and I get excellent coverage. Maybe your phone just has a shitty antenna...lots of them do. My dad's Siemens PocketPC phone has one of the worst antennas I have ever seen.
did you read the original post?
 

betrayed

Banned - What an Asshat!
1,782
0
0
#17
Heh, I live in maine too and the rest of the world thinks were hicks up here so they don't give us antennas.. :(
 

MaxPower

You're my number two
Staff
16,851
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487
#18
jstager said:
P99...I have AT&T for my cell phone and I get excellent coverage. Maybe your phone just has a shitty antenna...lots of them do. My dad's Siemens PocketPC phone has one of the worst antennas I have ever seen.
It may be. I had AT&T service and used a motorola V60i. Never had a problem except for sometimes driving through Valleys in upstate NY.

Since I was issued a phone from my company though I had to geht a new phone. Some Siemens pieca crap, because we use the AT&T GPRS service. This phone sucks. You cant even put your finger on the back of the phone over the spot where the internal antenna is.
 

MaxPower

You're my number two
Staff
16,851
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487
#19
p99 said:
Heh, I live in maine too and the rest of the world thinks were hicks up here so they don't give us antennas.. :(
Fuck the rest of the world. You have Great ski and snowboarding conditions.
 

extremepilot

Go jerk off or something
121
0
0
#20
Fuck AT&T
switch to something else
or just be lazy and let time do its job. That what i do. After a while you have more power to do stuff. Then u get tired of shit. Then wait a few days and try again.