Hi IWAMOTO,
I followed this. but get_protocol doesnt give the payload of the protocol,
it gives only header.
My use case is ,
Check the TTL Expiry for IP Packet, If expired, send the ICMP TTL
EXCEEDED Message to the sender.
Here the problem is In the ICMP TTL Expiry message the payload should be
received IP Packet as it is.
thanks
suresh
On Thu, Jul 19, 2018 at 7:09 AM, IWAMOTO Toshihiro <iwam...@valinux.co.jp>
wrote:
> On Tue, 17 Jul 2018 10:30:19 +0900,
> knet solutions wrote:
> >
> > [1 <multipart/alternative (7bit)>]
> > [1.1 <text/plain; UTF-8 (7bit)>]
> > Hi,
> >
> > How do we extract the payload from the packet.
> >
> >
> >
> > Ethernet Header + (Payload)
> > IP Header + (Payload)
> > TCP/UDP Header
> > + (Payload)
> >
> >
> >
> > On different scenarios, i require different payloads (ethernet payload,
> IP
> > payload, TCP/UDP Payload).
> >
> >
> > I referred earlier mailing list, and it was mentioned as,
> >
> > pkt.protocols[-1]
> >
> >
> > But this gives only payload for TCP or UDP Protocols.
> >
> > How to extract other protocol payloads?
> >
>
> use get_protocol. See:
>
> http://osrg.github.io/ryu-book/en/html/packet_lib.html#basic-usage
>
> --
> IWAMOTO Toshihiro
>
--
*Regards, *
*Knet solutions.*
https://github.com/knetsolutions/KNet
http://knet-topology-builder.readthedocs.io/
http://knetsolutions.in/
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