Don’t show clear information when I use PPP encapsulation on GNS3

Hello everybody

I'm working with GNS3 and PPP encapsulation I put the simple example the PPP encapsulation.

This is the desing of the network

This is the basic configuration is:

R1

Router(config)#int s0/0
Router(config-if)#ip address 190.0.0.1 255.255.255.0  
Router(config-if)#encapsulation ppp
Router(config-if)#no sh 
Router(config-if)#exit

R2

Router(config)#int s0/0
Router(config-if)#ip address 190.0.0.2 255.255.255.0
Router(config-if)#encapsulation ppp
Router(config-if)#no sh
Router(config-if)#exit

So when I try to capture the information with Wireshark I get the following information.

This is the specifications of my platform:

Linux socialmedia 3.14-1-amd64 #1 SMP Debian 3.14.4-1 (2014-05-13) x86_64 GNU/Linux

Running the command wireshark -v

wireshark 1.10.7 (v1.10.7-0-g6b931a1 from master-1.10)
Compiled (64-bit) with GTK+ 3.12.2, with Cairo 1.12.16, with Pango 1.36.3, with
GLib 2.40.0, with libpcap, with libz 1.2.8, with POSIX capabilities (Linux),
with libnl 3, with SMI 0.4.8, with c-ares 1.10.0, with Lua 5.2, without Python,
with GnuTLS 3.2.14, with Gcrypt 1.5.3, with MIT Kerberos, with GeoIP, with
PortAudio V19-devel (built Feb 15 2014 23:28:00), without AirPcap.
Running on Linux 3.14-1-amd64, with locale es_CO.UTF-8, with libpcap version
1.5.3, with libz 1.2.8, GnuTLS 3.2.15, Gcrypt 1.5.3.
AMD C-60 APU with Radeon(tm) HD Graphics
Built using gcc 4.8.3.

I can see nothing. Someone could tell me why does this happen and how to fix it?

According with this: http://wiki.wireshark.org/CaptureSetup/PPP, it’s possible but I don’t kwow how.