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VLAN and Exchange server

Answered Question
Jan 22nd, 2015
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Hi everyone,

 

We need help on the configuration of our Exchange server and VLAN.
Since I'm a beginner in VLAN configurations.
We are using Cisco SG300 switch and Exchange server.


We have 2 NICs on our server, with 1 having a static Public(internet) IP for internet which is directly connected to our ISP modem(complete with IP Address, Subnet Mask, Default Gateway and DNS), the other NIC has a static Local(intranet) IP for local network(with IP Address and Subnet Mask only).

Our Problem is we cannot add an Default Gateway on the 2nd NIC(intranet) because it says conflict with the gateway specified on the other NIC.

We want to add a Default Gateway on the 2nd NIC(intranet) to be become accessible from other VLANs.

How can the server be accessible to other different VLANs on our network?


What will be the best approach on this?


Thanks in advance.

J

Correct Answer by larsthestar about 2 years 6 months ago

You should add routes to your windows routing table.

So if your server is in VLAN 10.10.10.0/24 and has the IP of 10.10.10.2 and your router is 10.10.10.1 then you can add routes to all your VLANs by adding the networks and routing them through 10.10.10.1.

For example, in your command prompt on Windows you would type:

route -p ADD 10.10.11.0 MASK 255.255.255.0 10.10.10.1
route -p ADD 10.10.12.0 MASK 255.255.255.0 10.10.10.1
route -p ADD 10.10.13.0 MASK 255.255.255.0 10.10.10.1

That would make your computer access all the internal VLANs as well as make it reachable from those VLANs.

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Correct Answer
larsthestar Thu, 01/22/2015 - 04:16
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You should add routes to your windows routing table.

So if your server is in VLAN 10.10.10.0/24 and has the IP of 10.10.10.2 and your router is 10.10.10.1 then you can add routes to all your VLANs by adding the networks and routing them through 10.10.10.1.

For example, in your command prompt on Windows you would type:

route -p ADD 10.10.11.0 MASK 255.255.255.0 10.10.10.1
route -p ADD 10.10.12.0 MASK 255.255.255.0 10.10.10.1
route -p ADD 10.10.13.0 MASK 255.255.255.0 10.10.10.1

That would make your computer access all the internal VLANs as well as make it reachable from those VLANs.

Jerry Paul Thu, 01/22/2015 - 07:18
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  • Community Spotlight Award,

    Best Publication, May 2015

Hi Jay,

 

There are many ways to access server from different VLANS. I have described few methods below:

 

1. Set your server to act as a Router.

2. Assign LAN NLC the IP of public gateway NLC.

3. Connect SG300 with server through WAN cable and pass all traffic of client through server.

4. Install Curio software on server and control all clients through this software.

 

 

If you need any more technical assistance OR Networking Support Services, contact me at Skype: steve.odsi

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