Hello Michael,
Thank you for the answer,
I was able configure quagga using telnet, and it worked well on standard ubuntu linux.
What I was trying to achieve, was to build a test environment using quagga + coreemu.
It seems that coreemu relies on vtysh to apply configuration, because even when I configured by telnet
the connection to cache didn't work, while ping was ok.
I'll try to talk to coreemu's folks, maybe they can explain me what is happening.
Thank you very much,
Congratulations for this great project !!!
Pablo Costa