Linux: OpenSUSE - ssh timeout

trace for ssh
linux-nn5t:~ # strace -p 5117
Process 5117 attached - interrupt to quit
connect(3, {sa_family=AF_INET, sin_port=htons(22), sin_addr=inet_addr("192.168.55.100")}, 16) = -1 ETIMEDOUT (Connection timed out)
close(3) = 0
write(2, "ssh: connect to host 192.168.55."..., 67) = 67
exit_group(255) = ?
Process 5117 detached

Solution:

Stop firewall

/sbin/SuSEfirewall2 off