Re: [ns] Encapsulation

[Haobo Yu <haoboy@isi.edu>]

this is used in centralized multicast to encapsulate a mcast packet in a
unicast packet towards RP. You can check out its usage in related code, or
see ns manual if you can find related info (i'm not sure though).

On Fri, 7 Jul 2000, Kaleelazhicathu R R Kumar wrote:

> Date: Fri, 7 Jul 2000 15:18:14 +0800 
> From: Kaleelazhicathu R R Kumar <iscp9133@nus.edu.sg>
> To: "'ns-users@isi.edu'" <ns-users@ISI.EDU>
> Subject: [ns] Encapsulation
> 
> hi all,
>    is there any document which describes Encapsulators and Decapsulators?? i
> want to encapsulate a packet with a TCP and Ip header . I think this can be
> done with the above mentioned agents..but i am not able to figure out where
> should i mention about the type of headers(in this case tcp and ip headers)
> to be encapsulated...i could see the variable off_encap_ in the agent code
> which i guess is the offset where the newly encapsulated header starts.how
> can i then access each of the new headers which are added..say new TCP and
> IP headers?? i am trying to create a TCP tunnel.any help will be
> appreciated.any pointers??
>    thanks.
>     Renjish.
>