Port of Linux 2.6.28 for use with network simulation cradle.
#ifndef _IP6T_ESP_H
#define _IP6T_ESP_H
#include <linux/netfilter/xt_esp.h>
#define ip6t_esp xt_esp
#define IP6T_ESP_INV_SPI XT_ESP_INV_SPI
#define IP6T_ESP_INV_MASK XT_ESP_INV_MASK
#endif /*_IP6T_ESP_H*/