extern octet buf_i[PKBUFSZ], buf_o[PKBUFSZ], buf_t[PKBUFSZ];
extern const tunnel_ops *tunnels[]; /* Table of tunnels (0-term) */
extern const tunnel_ops *tun_default; /* Default tunnel to use */
extern octet buf_i[PKBUFSZ], buf_o[PKBUFSZ], buf_t[PKBUFSZ];
extern const tunnel_ops *tunnels[]; /* Table of tunnels (0-term) */
extern const tunnel_ops *tun_default; /* Default tunnel to use */