Вот пример простого скрипта настройки IPsec segw NIC с помощью DPDK:
/*

config.c
*/
#include <stdio.h>
#include <string.h>
#include <inttypes.h>

#include <rte_common.h>
#include <rte_malloc.h>
#include <rte_memcpy.h>
#include <rte_ring.h>
#include <rte_mbuf.h>

#include <ipsec_segw.h>

#define RTE_LOGTYPE_PMD RTE_LOGTYPE_USER3

static const uint16_t port_ids[4] = {0, 1, 2, 3};

void setup_mbuf_pool(void)
{
const uint16_t mb_size = RTE_MBUF_DEFAULT_BUF_SIZE;
const uint16_t pool_size = 8192;

for (uint16_t i = 0; i < RTE_DIM(port_ids); i++) { 
    char mb_name[RTE_STR_SIZE]; 
    snprintf(mb_name, RTE_STR_SIZE, "MBUF_POOL_%" PRIx16, port_ids[i]); 

    pools[i] = rte_mempool_create(mb_name, 
            pool_size, mb_size, 0, 
            sizeof(struct rte_mbuf), 
            NULL);  
} 
}

int main(int argc, char *argv[])
{
int ret;

struct ipsec_segw_conf conf; 

conf.nb_dst_ports = 4;
conf.dst_port_ids = port_ids;

rte_ip_pktmbuf_setup_t ip_setup; 
ip_setup.priv = NULL; 

ret = ipsec_segw_init(conf, &ip_setup); 
if (ret != 0) { 
    printf("ipsec_segw_init failed!\n"); 
    return -1; 
} 

setup_mbuf_pool(); 

ipsec_segw_configure();  // конфигурация ipsec segw

rte_eal_mempool_memset(pools[0], 0, 0); 
rte_eal_mempool_memset(pools[1], 0, 0); 
rte_eal_mempool_memset(pools[2], 0, 0); 
rte_eal_mempool_memset(pools[3], 0, 0); 

rte_eal_mempool_memset(ipsec_segw_esp_mbuf_pool, 0, 1); 

return 0; 
}
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