I have a server and a PC
In the server running GNS3 0.8.3.1 ,I have a JunOS image and configed the qemu in GNS3

Server-------------------PC
192.168.0.2 192.168.0.1
Cisco iOS and JunOS are running,

Now ,at server,I can use "telnet 127.0.0.1 200x"
"telnet 192.168.0.2 200x" to connect the Cisco iOS ,
and use " telnet 127.0.0.1 300x" to connect the JunOS
but I can't use "telnet 192.168.0.1 300x"

At PC ,it's the same , telnet 192.168.0.2 200x is OK,but 300x to the JunOS is unreachable.

Is it possible to connect the JunOS from a different PC?
And what should be configed then?