On Tue, Jan 10, 2017 at 12:31:01AM +0800, Sun Paul wrote: > what kind of information do you need? the whole INIT packet? > That would be ideal. > On Mon, Jan 9, 2017 at 8:25 PM, Neil Horman <nhorman@xxxxxxxxxxxxx> wrote: > > On Mon, Jan 09, 2017 at 06:00:36PM +0800, Sun Paul wrote: > >> Hi > >> > >> the linux router just change the destination, so it can arrive on the > >> the SERVER. > >> > > Please post the relevant snippets from the client and server tcpdump > > operations > > > > Neil > > > >> On Mon, Jan 9, 2017 at 5:51 PM, David Laight <David.Laight@xxxxxxxxxx> wrote: > >> > From: Sun Paul > >> >> Sent: 09 January 2017 02:08 > >> > > >> >> >> I am setting up a lab where the SCTP traffics from client is passing > >> >> >> through a linux router before reaching to the SCTP server running > >> >> >> LKSCTP. > >> >> >> > >> >> >> The linux router did not change the source address of the client, so > >> >> >> when it arrived to the SCTP server, the source address is the oriingal > >> >> >> one. > >> >> > >> >> the INIT chunk arrive on the SERVER, but then no response. the > >> >> application that using in SERVER is the same as the other test. > >> >> > >> >> I noticed one thing in Ethernet frame of the incoming packet on the > >> >> SERVER compared to the one captured from the client is the LG bit on > >> >> the source address. > >> >> > >> >> The LG bit is set to 0 on the request packet received in the > >> >> SERVER,but it is 0 from the one originated on the client. willl it be > >> >> the root cause? > >> > > >> > Which addresses are you talking about, and what do you mean by the LG bit? > >> > > >> > Is your linux 'router' just routing (ie IP forwarding) or is it doing NAT? > >> > If it is changing the IP addresses then the addresses inside some SCTP > >> > chunks also need changing. > >> > > >> > David > >> > > >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-sctp" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
