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Wireless Networks Thread, Route two networks over 1 cat 5 link? in Technical; I have two linked netgear smart switches that are linked via one uplink cable. I have two networks on different ...
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    ICT_GUY's Avatar
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    Route two networks over 1 cat 5 link?

    I have two linked netgear smart switches that are linked via one uplink cable.

    I have two networks on different ip ranges (admin & curriculum) the switches are currently connected to the curriculum network.

    What I need to happen is to route admin traffic from a port on the first switch to a port on the second via the one uplink cable.

    I am just not quite sure how I set this up, but I am sure it should work. (I also have a feeling this is just as easy as telling the switch which port is on the different ip-range)

    Advice please.

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    powdarrmonkey's Avatar
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    With VLAN tagging and a trunk, I think. Never done it though.

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    ICT_GUY (28th May 2010)

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    Quote Originally Posted by powdarrmonkey View Post
    With VLAN tagging and a trunk, I think. Never done it though.
    The switches do support this,

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    You can go about it in two ways,

    1. Just connect the switches - the switches don't need to know about IP addresses(they only operate at layer 1/2 and don't deal with IP addresses(Layer 3) at all), as long as nothing is routing packets between the networks it'll just work.
    2. Use VLAN's. setup curric ports as VLAN 1 and Admin as VLAN 2 then configure your uplink port as a trunk, it will then be able to pass traffic from VLAN 1 to any port that is a member of VLAN 1 and so on.

    By using VLAN's you would maintain layer 2 segmentation - packets would not cross between VLANS unless they go via a router at which point you could apply ACL's to prevent certain data going from one to the other.

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    ICT_GUY (28th May 2010)

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