windows server Intermittent outages on two subnets on 2003 server

[Guest Fox1977]

Hi there,

 

Just wondering if anyone could help me with a problem we are

experiencing. We have a server running with two NICs on two seperate

subnets going out on two different VLANs. The firewall cannot route

between the two firewalls and we are working to try and get the

routing sorted.

 

I have a subnet on each NIC and intermittently we are having outages

on each subnet. I have a continuos ping running against each subnet

and there seems to be brief 5-10second outages on alternate ranges.

There doesnt seem to be any pattern between the issues.

 

We have websites running on each of the subnets and obviously the

sites go down when there is an issue.

 

Anyone any ideas?

[Guest Ace Fekay [MCT]]

"Fox1977" wrote in message

news:2c555fab-7ea5-4ab3-869f-9752112d19bb@a13g2000yqc.googlegroups.com...

> Hi there,

>

> Just wondering if anyone could help me with a problem we are

> experiencing. We have a server running with two NICs on two seperate

> subnets going out on two different VLANs. The firewall cannot route

> between the two firewalls and we are working to try and get the

> routing sorted.

>

> I have a subnet on each NIC and intermittently we are having outages

> on each subnet. I have a continuos ping running against each subnet

> and there seems to be brief 5-10second outages on alternate ranges.

> There doesnt seem to be any pattern between the issues.

>

> We have websites running on each of the subnets and obviously the

> sites go down when there is an issue.

>

> Anyone any ideas?

 

 

I assume this is related to your other thread. I'm not sure if it is because

of the way you've configured the server (multiple NICs with multiple

gateways), or because of your routers/firewalls. If I may suggest, you said

you may have to wait for the new firewall to come in, in order to be able to

route between the subnets that you currently can't. That may be the

solution.

 

FYI - For anyone else that would like to help and attempt to diagnose this

for Fox1977, please refer to the original thread for more information

concerning the current setup and other info:

From: Fox1977

Newsgroups: microsoft.public.windows.server.general

Subject: Changing default IP address when running server on two subnets?

Date: Tue, 14 Jul 2009 02:09:09 -0700 (PDT)

Organization: http://groups.google.com

Lines: 24

 

--

Ace

 

This posting is provided "AS-IS" with no warranties or guarantees and

confers no rights.

 

Please reply back to the newsgroup or forum to benefit from collaboration

among responding engineers, and to help others benefit from your resolution.

 

Ace Fekay, MCT, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA Messaging

Microsoft Certified Trainer

 

For urgent issues, please contact Microsoft PSS directly. Please check

http://support.microsoft.com for regional support phone numbers.

[Guest Anthony [MVP]]

Fox,

The server can be used as a router (except it is usually cheaper and easier

to buy a small router).

However I don't follow how it solves the problem you describe. You would

need to give some details to get a useful answer:

- what type of firewall?

- how many physical devices in each subnet? is there a switch somewhere?

- ipconfig /all for the server/router (and perhaps "route print" as well)

- its a web server: how many web sites? why so many IP's?

Anthony

http://www.airdesk.com

 

 

 

"Fox1977" wrote in message

news:2c555fab-7ea5-4ab3-869f-9752112d19bb@a13g2000yqc.googlegroups.com...

> Hi there,

>

> Just wondering if anyone could help me with a problem we are

> experiencing. We have a server running with two NICs on two seperate

> subnets going out on two different VLANs. The firewall cannot route

> between the two firewalls and we are working to try and get the

> routing sorted.

>

> I have a subnet on each NIC and intermittently we are having outages

> on each subnet. I have a continuos ping running against each subnet

> and there seems to be brief 5-10second outages on alternate ranges.

> There doesnt seem to be any pattern between the issues.

>

> We have websites running on each of the subnets and obviously the

> sites go down when there is an issue.

>

> Anyone any ideas?