Strange Network Issues

gejomasta · 10-25-2006, 02:23 PM

Hello, I have been getting some strange network issues between two major sites.

This morning at about 6AM PST network connectivity seemed to be nonexistant between two sites:
-Domain replication is not happening
-The two sites are not communicating

Odd symtoms:
-The two sites were able to ping, large and small packets
-Keberos is working oddly enough
-because keberos is fuctional so is NTP (time service)
-SMTP IS working (sort of) Site 1 can send emails to Site 2 but not visversa

We have tried everything we can think of, We have turned the issue to the Providers hoping the problem is within they're network not ours.

Any one have any ideas?

gejomasta · 10-25-2006, 03:20 PM

It's fixed, the Service provider neglected to tell us "core network maintenance may affect your service." ...

Upon analizing the packets they seemed to be getting reencapsulated incorrectly on outbound from the provider. packets were different on the recieving end than the outgoing, as in completely different sizes, and packet headers were not the same and seemed to be in within the payload area of the packet.

**johnwill** · 10-26-2006, 12:48 PM

That would have kept us guessing for awhile, glad it got sorted out.

10-25-2006, 02:23 PM	#1 (permalink)
gejomasta Registered User Join Date: Oct 2006 Posts: 2 OS: Windows XP professional	Strange Network Issues Hello, I have been getting some strange network issues between two major sites. This morning at about 6AM PST network connectivity seemed to be nonexistant between two sites: -Domain replication is not happening -The two sites are not communicating Odd symtoms: -The two sites were able to ping, large and small packets -Keberos is working oddly enough -because keberos is fuctional so is NTP (time service) -SMTP IS working (sort of) Site 1 can send emails to Site 2 but not visversa We have tried everything we can think of, We have turned the issue to the Providers hoping the problem is within they're network not ours. Any one have any ideas?

10-26-2006, 12:48 PM	#3 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,740 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	That would have kept us guessing for awhile, glad it got sorted out. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

10-25-2006, 03:20 PM	#2 (permalink)
gejomasta Registered User Join Date: Oct 2006 Posts: 2 OS: Windows XP professional	It's fixed, the Service provider neglected to tell us "core network maintenance may affect your service." ... Upon analizing the packets they seemed to be getting reencapsulated incorrectly on outbound from the provider. packets were different on the recieving end than the outgoing, as in completely different sizes, and packet headers were not the same and seemed to be in within the payload area of the packet.