Very Computer

>I am currently developing a Signaling Protocol instance, which will
>signal along a IP "Flow".

>Thus I have addressing information the like

>"Flow Source IP"/"Flow Destination IP"

>Now I want to query the Linux kernel, how it woul route Pakets with that
>source and destination. (This is essential to me, as I must not use
>other interfaces than these, which are used for the flow, and a router
>would have many of them *ggg*)

>I found that the program "ip" is able to do such queries
>("ip route get 10.10.0.1 from 10.10.0.6"),
>but I found still no way to query the kernel programmatically from a C++
>  program.

>Has anyone some hints to as where to look for information or even a
>solution?

>"man 7 ip" and referenced manpages did not help thus far...

>Many thanks,
>Thomas

> I am currently developing a Signaling Protocol instance, which will
> signal along a IP "Flow".

> Thus I have addressing information the like

> "Flow Source IP"/"Flow Destination IP"

> Now I want to query the Linux kernel, how it woul route Pakets with that
> source and destination. (This is essential to me, as I must not use
> other interfaces than these, which are used for the flow, and a router
> would have many of them *ggg*)

> I found that the program "ip" is able to do such queries
> ("ip route get 10.10.0.1 from 10.10.0.6"),
> but I found still no way to query the kernel programmatically from a C++
>   program.

> Has anyone some hints to as where to look for information or even a
> solution?

> "man 7 ip" and referenced manpages did not help thus far...

> Many thanks,
> Thomas

> David

>> Use the Source Luke.  The source of ip that is.

>> David

> Thanks for the hint ;-)

> I hoped not to have to do it, as core utilities in Linux tend to be
> developed by the ultimate hackers and the chance for "normal people" to
> understand these is somewhat limited *ggg*

> But I will have a look at it, as it seems there is no other way :-)