Re: [Help-gnunet] Wrong reply addresses

[Matthias Wachs]

Hi,

we have a change in the address format of all plugins with revision >=
27643. Peers running < 27643 cannot use these addresses and will
misinterpret them. 


Is it possible that 77.231.167.19 is your external IP address?
I definitely think so ... but since I do not want to disclose sensitive
data through this ml you can contact me on IRC.

I tested udp connectivity and got connected with peers running svn head
on core and transport level.

You can try to update to svn head and see if the problem still exists.
If yes, please send me additional information (gnunet-peerinfo -i -n
output) or create a bug with additional information in our bug tracker
https://gnunet.org/bugs

Cheers 

Matthias


On Mon, 2013-07-08 at 19:18 +0200, Lluís Batlle i Rossell wrote:
> Hello,
> 
> I'm trying to setup two computers running gnunet in the LAN. In one of them, I
> use the same 'data' directory (~/.gnunet) as I've tried to use since long, 
> where
> I had upnp options in the config, etc. (192.168.1.34).
> 
> In the other, it's a new gnunet without any special config.
> 
> When I start both, and having previously shared HELLO uris, I cannot make them
> communicate. In tcpdump, I see that the 'reply' address is wrong:
> 19:08:35.803702 IP 192.168.1.34.2086 > 192.168.1.255.2086: UDP, length 156
> 19:08:35.819303 IP 192.168.1.34.48138 > 192.168.1.35.2086: Flags [S], seq 
> 634238465, win 14600, options [mss 1460,sackOK,TS val 174482922 ecr 
> 0,nop,wscale 7], length 0
> 19:08:35.819340 IP 192.168.1.35.2086 > 192.168.1.34.48138: Flags [S.], seq 
> 2769402814, ack 634238466, win 14480, options [mss 1460,sackOK,TS val 
> 513001021 ecr 174482922,nop,wscale 7], length 0
> 19:08:35.819911 IP 192.168.1.34.2086 > 192.168.1.35.2086: UDP, length 282
> 19:08:35.820171 IP 192.168.1.35.2086 > 192.168.1.34.2086: UDP, length 238
> 19:08:35.821181 IP 192.168.1.34.48138 > 192.168.1.35.2086: Flags [.], ack 1, 
> win 115, options [nop,nop,TS val 174482923 ecr 513001021], length 0
> 19:08:35.821590 IP 192.168.1.34.48138 > 192.168.1.35.2086: Flags [P.], seq 
> 1:69, ack 1, win 115, options [nop,nop,TS val 174482924 ecr 513001021], 
> length 68
> 19:08:35.821602 IP 192.168.1.35.2086 > 192.168.1.34.48138: Flags [.], ack 69, 
> win 114, options [nop,nop,TS val 513001024 ecr 174482924], length 0
> 19:08:35.821740 IP 192.168.1.35.2086 > 192.168.1.34.48138: Flags [P.], seq 
> 1:69, ack 69, win 114, options [nop,nop,TS val 513001024 ecr 174482924], 
> length 68
> 19:08:35.823902 IP 192.168.1.34.48138 > 192.168.1.35.2086: Flags [P.], seq 
> 69:279, ack 1, win 115, options [nop,nop,TS val 174482925 ecr 513001021], 
> length 210
> 19:08:35.824119 IP 192.168.1.35.2086 > 192.168.1.34.48138: Flags [P.], seq 
> 69:235, ack 279, win 122, options [nop,nop,TS val 513001026 ecr 174482925], 
> length 166
> 19:08:35.829074 IP 192.168.1.34.48138 > 192.168.1.35.2086: Flags [.], ack 69, 
> win 115, options [nop,nop,TS val 174482931 ecr 513001024], length 0
> 19:08:35.829763 IP 192.168.1.34.48138 > 192.168.1.35.2086: Flags [.], ack 
> 235, win 123, options [nop,nop,TS val 174482931 ecr 513001026], length 0
> 19:08:35.887607 IP 192.168.1.34.2086 > 192.168.1.35.2086: UDP, length 88
> 19:08:35.887766 IP 192.168.1.35.2086 > 77.231.167.19.2086: UDP, length 88
> 19:08:36.372891 IP 192.168.1.34.2086 > 192.168.1.35.2086: UDP, length 88
> 19:08:36.373051 IP 192.168.1.35.2086 > 77.231.167.19.2086: UDP, length 88
> 19:08:36.623690 IP 192.168.1.34.2086 > 192.168.1.35.2086: UDP, length 88
> 19:08:36.623844 IP 192.168.1.35.2086 > 77.231.167.19.2086: UDP, length 88
> 
> ....
> 
> Any idea why the communication doesn't work? 77.231.167.19 isn't my IP today, 
> so
> I guess this explains also why I can't connect 192.168.1.34 to any host in
> the internet either.
> 
> (I'm using svn 27399)
> 
> Regards,
> Lluís.
> 
> _______________________________________________
> Help-gnunet mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/help-gnunet

-- 
Dipl.-Inf. Matthias Wachs
Free Secure Network Systems Group
Technische Universitaet Muenchen
Chair for Network Architectures and Services
Institute for Informatics / I8           Tel:    +49 89 289 18037
Boltzmannstr. 3 / Room 03.05.042         Fax:    +49 89 289 18033
D-85748 Garching b. Muenchen, Germany    Email: address@hidden

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