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2 lans in laptop computer

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by togo9

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Am having a laptop running XP with 2 network cards for 2 separate lans when enabled both network cards I cannot a acess my emails and the internet but can access the other lan without any problem , so for me to accces the mails and internet I must disable the network interface of one lan , but I need the 2 lans to be active concurrently what could be the problem

4 replies

by dplewis

Only a guess but it might be related to default gateways - i.e. an IP route to unknown addresses (netstat -rn from the command line). Your PC might hold multiple default gateways but will only make use of one. You might have to add routes to the routing table for individual subnets on each of the interfaces. Unless you're using a proxy server, the "active default gateway" must be on the LAN ith the Internet connection.

Are the two LANs connected to each other elsewhere - in which case the problem could be your NetBIOS name - unless you're using AD, you can't have two IP addresses associated with the same name.

Hope this helps,
Paul

by tech_guy1

make sure that the lans have 2 different ip addressing schemes.

Example: both lans cannot be 192.168.2.x with a subnet of 255.255.255.0

You could use: Lan1: IP: 192.169.2.x
Sub: 255.255.255.0
Lan2: IP: 192.168.3.x
Sub: 255.255.255.0
If they are the same, the information doesn't know which way to route.

by wlbowers

You need to use the local bridge to connect the two lans.

With Network Bridge, you can connect lan segments by selecting the network connection icons and clicking Bridge Connections.

The network bridge manages your network segments and creates a single subnet for the entire network.

For a complete how to open Help and Support and search for Local Bridge.

Good Luck Lee

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