Is there any way to know the computer is connected to a router?

Is there any way to know the computer is connected to a router?

I know using WebRequest is one of the method,
but WebRequest need router's URL , username and password.
I don't know those information.

Is there any other way to know the existence of router?

Thanks.

There is a protocol for that but it depends on the router being
configured to advertise its presence.

In what situation do you need to find a router? Normally a client
machine will have the default router address supplied by DHCP.

"garks" <(E-Mail Removed)> wrote in message
news:ffa69680-17a6-4f7f-aac1-(E-Mail Removed)...
> Is there any way to know the computer is connected to a router?
>
> I know using WebRequest is one of the method,
> but WebRequest need router's URL , username and password.
> I don't know those information.
>
> Is there any other way to know the existence of router?
>
> Thanks.

Thank you for your reply.

I am doing a project which writing a small window app.
It determines the computer that runs this app have a router connected
or not.
If yes, it will do A. Otherwise do B.

This app is distributed to different client.
I don't know each default router address.

Thanks in advanced

"garks" <(E-Mail Removed)> wrote in message
news:a6775d83-7232-4e01-a714-(E-Mail Removed)...
> Thank you for your reply.
>
> I am doing a project which writing a small window app.
> It determines the computer that runs this app have a router connected
> or not.
> If yes, it will do A. Otherwise do B.
>
> This app is distributed to different client.
> I don't know each default router address.
>
> Thanks in advanced
>

The problem is, every computer on a network is "connected to a router" (of
some sort). In fact, a computer not connected to a network also has a
router (itself). So... what do you really want to know?

-Frank