ssh_dispatch_range
void ssh_dispatch_range(struct ssh *, u_int, u_int, dispatch_fn *);
ssh_dispatch_range(ssh, SSH2_MSG_TRANSPORT_MIN,
ssh_dispatch_range(ssh, SSH2_MSG_USERAUTH_MIN, SSH2_MSG_USERAUTH_MAX, NULL);
ssh_dispatch_range(ssh, SSH2_MSG_USERAUTH_PER_METHOD_MIN,