RTP header compression On Thu, Nov 3, 2016 at 11:41 AM, Julian Elischer <[email protected]> wrote:
> On 19/10/2016 1:56 PM, Samira Nazari wrote: > >> Thank you for all of your comments and help. >> In fact, I want to divert packets for one program that do header >> compression >> > > > What kind of header compression? Also look at netgraph. > >> >> Sam, Naz >> >> On Tue, Oct 18, 2016 at 7:33 PM, Ian Smith <[email protected]> wrote: >> >> On Tue, 18 Oct 2016 14:21:50 +0000, Shawn Bakhtiar wrote: >>> > On Oct 18, 2016, at 6:49 AM, Samira Nazari <[email protected] >>> <mailto:[email protected]>> wrote: >>> > > Hello every one, >>> > > When we diverte packets to the specified port with "IPFW divert" , >>> > > we can change it and re-sent to the kernel? >>> >>> > Not sure what you mean by change it but: >>> > >>> > "Divert sockets are similar to raw IP sockets, except that they can >>> > be bound to a specific divert port via the bind(2) system call. The >>> > IP address in the bind is ignored; only the port number is >>> > significant. A divert socket bound to a divert port will receive all >>> > packets diverted to that port by some (here unspecified) kernel >>> > mechanism(s). Packets may also be written to a divert port, in which >>> > case they re-enter kernel IP packet processing." >>> > >>> > -- SRC: https://www.freebsd.org/cgi/man.cgi?query=divert&sektion= >>> 4&apropos=0&manpath=FreeBSD+10.3-RELEASE+and+Ports >>> >>> Apart from divert(4), most likely the best example is the natd(8) code, >>> which modifies packet source or destination addresses and (maybe) ports. >>> >>> Ignoring the NAT processing - or not, as appropriate - the way natd uses >>> divert sockets both to receive packets from ipfw and later (perhaps) to >>> reinject them for further processing should show clearly how it's done. >>> >>> cheers, Ian >>> >>> _______________________________________________ >> [email protected] mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-ipfw >> To unsubscribe, send any mail to "[email protected]" >> >> > _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-ipfw To unsubscribe, send any mail to "[email protected]"
