do router route automatically?

Answered Question
Feb 7th, 2008
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Lets say you have a router connected to 2950-


You have configured a few vlans on the 2950 and configured interfaces on the router for each subnet (router on a stick)


Now do you have to enable some routing on the router in order for the various devices on each individual vlan to communicate?..or will the router do this out of the box...


Im only talking about a LAN enviroment right now......not WAN


Correct Answer by Istvan_Rabai about 9 years 4 months ago

Hi Richard,


The router will route between the connected interfaces out of the box.


You don't need to start a routing process for that.


Routing protocols are needed when you want the router to learn about subnets (destinations) that are located on other routers, not locally.


Cheers:

Istvan

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Jon Marshall Thu, 02/07/2008 - 12:59
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Hi


As log as you have not disabled "ip routing" then the router will automatically route between it's connected interfaces.


Jon

Correct Answer
Istvan_Rabai Thu, 02/07/2008 - 13:02
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Hi Richard,


The router will route between the connected interfaces out of the box.


You don't need to start a routing process for that.


Routing protocols are needed when you want the router to learn about subnets (destinations) that are located on other routers, not locally.


Cheers:

Istvan

pciaccio Thu, 02/07/2008 - 13:15
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No you do not have to have a routing protocol on the router. You need to have routing enabled but each interface VLAN is a directly connected interface to the router and thus will route packets according to its directly connected route table. If you require any packets to go beyond the router onto other areas of your company then you might want to look into a routing protocol or static routes depending upon the size of your network and or complexity...Good Luck...

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