new file mode 100644
--- /dev/null
+++ b/packages/net/tcpip/current/tests/ping_lo_test.c
@@ -0,0 +1,258 @@
+//==========================================================================
+//
+//      tests/ping_lo_test.c
+//
+//      Simple test of PING (ICMP) and networking support
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//####BSDCOPYRIGHTBEGIN####
+//
+// -------------------------------------------
+//
+// Portions of this software may have been derived from OpenBSD or other sources,
+// and are covered by the appropriate copyright disclaimers included herein.
+//
+// -------------------------------------------
+//
+//####BSDCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    gthomas, sorin@netappi.com
+// Contributors: gthomas, sorin@netappi.com
+// Date:         2000-01-10
+// Purpose:      
+// Description:  
+//              
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+// PING test code
+
+#include <network.h>
+
+#include <cyg/infra/testcase.h>
+
+#define STACK_SIZE CYGNUM_HAL_STACK_SIZE_TYPICAL
+static char stack[STACK_SIZE];
+static cyg_thread thread_data;
+static cyg_handle_t thread_handle;
+
+#define NUM_PINGS 16
+#define MAX_PACKET 4096
+static unsigned char pkt1[MAX_PACKET], pkt2[MAX_PACKET];
+
+#define UNIQUEID 0x1234
+
+void
+pexit(char *s)
+{
+    CYG_TEST_FAIL_FINISH( s );
+}
+
+// Compute INET checksum
+int
+inet_cksum(u_short *addr, int len)
+{
+    register int nleft = len;
+    register u_short *w = addr;
+    register u_short answer;
+    register u_int sum = 0;
+    u_short odd_byte = 0;
+
+    /*
+     *  Our algorithm is simple, using a 32 bit accumulator (sum),
+     *  we add sequential 16 bit words to it, and at the end, fold
+     *  back all the carry bits from the top 16 bits into the lower
+     *  16 bits.
+     */
+    while( nleft > 1 )  {
+        sum += *w++;
+        nleft -= 2;
+    }
+
+    /* mop up an odd byte, if necessary */
+    if( nleft == 1 ) {
+        *(u_char *)(&odd_byte) = *(u_char *)w;
+        sum += odd_byte;
+    }
+
+    /*
+     * add back carry outs from top 16 bits to low 16 bits
+     */
+    sum = (sum >> 16) + (sum & 0x0000ffff); /* add hi 16 to low 16 */
+    sum += (sum >> 16);                     /* add carry */
+    answer = ~sum;                          /* truncate to 16 bits */
+    return (answer);
+}
+
+static int
+show_icmp(unsigned char *pkt, int len, 
+          struct sockaddr_in *from, struct sockaddr_in *to)
+{
+    cyg_tick_count_t *tp, tv;
+    struct ip *ip;
+    struct icmp *icmp;
+    tv = cyg_current_time();
+    ip = (struct ip *)pkt;
+    if ((len < sizeof(*ip)) || ip->ip_v != IPVERSION) {
+        diag_printf("%s: Short packet or not IP! - Len: %d, Version: %d\n", 
+                    inet_ntoa(from->sin_addr), len, ip->ip_v);
+        return 0;
+    }
+    icmp = (struct icmp *)(pkt + sizeof(*ip));
+    len -= (sizeof(*ip) + 8);
+    tp = (cyg_tick_count_t *)&icmp->icmp_data;
+    if (icmp->icmp_type != ICMP_ECHOREPLY) {
+        diag_printf("%s: Invalid ICMP - type: %d\n", 
+                    inet_ntoa(from->sin_addr), icmp->icmp_type);
+        return 0;
+    }
+    if (icmp->icmp_id != UNIQUEID) {
+        diag_printf("%s: ICMP received for wrong id - sent: %x, recvd: %x\n", 
+                    inet_ntoa(from->sin_addr), UNIQUEID, icmp->icmp_id);
+    }
+    diag_printf("%d bytes from %s: ", len, inet_ntoa(from->sin_addr));
+    diag_printf("icmp_seq=%d", icmp->icmp_seq);
+    diag_printf(", time=%dms\n", (int)(tv - *tp)*10);
+    return (from->sin_addr.s_addr == to->sin_addr.s_addr);
+}
+
+static void
+ping_host(int s, struct sockaddr_in *host)
+{
+    struct icmp *icmp = (struct icmp *)pkt1;
+    int icmp_len = 64;
+    int seq, ok_recv, bogus_recv;
+    cyg_tick_count_t *tp;
+    long *dp;
+    struct sockaddr_in from;
+    int i, len, fromlen;
+
+    ok_recv = 0;
+    bogus_recv = 0;
+    diag_printf("PING server %s\n", inet_ntoa(host->sin_addr));
+    for (seq = 0;  seq < NUM_PINGS;  seq++) {
+        // Build ICMP packet
+        icmp->icmp_type = ICMP_ECHO;
+        icmp->icmp_code = 0;
+        icmp->icmp_cksum = 0;
+        icmp->icmp_seq = seq;
+        icmp->icmp_id = 0x1234;
+        // Set up ping data
+        tp = (cyg_tick_count_t *)&icmp->icmp_data;
+        *tp++ = cyg_current_time();
+        dp = (long *)tp;
+        for (i = sizeof(*tp);  i < icmp_len;  i += sizeof(*dp)) {
+            *dp++ = i;
+        }
+        // Add checksum
+        icmp->icmp_cksum = inet_cksum( (u_short *)icmp, icmp_len+8);
+        // Send it off
+        if (sendto(s, icmp, icmp_len+8, 0, (struct sockaddr *)host, sizeof(*host)) < 0) {
+            perror("sendto");
+            continue;
+        }
+        // Wait for a response
+        fromlen = sizeof(from);
+        len = recvfrom(s, pkt2, sizeof(pkt2), 0, (struct sockaddr *)&from, &fromlen);
+        if (len < 0) {
+            perror("recvfrom");
+        } else {
+            if (show_icmp(pkt2, len, &from, host)) {
+                ok_recv++;
+            } else {
+                bogus_recv++;
+            }
+        }
+    }
+    diag_printf("Sent %d packets, received %d OK, %d bad\n", NUM_PINGS, ok_recv, bogus_recv);
+}
+
+static void
+ping_test_loopback( int lo )
+{
+    struct protoent *p;
+    struct timeval tv;
+    struct sockaddr_in host;
+    int s;
+
+    if ((p = getprotobyname("icmp")) == (struct protoent *)0) {
+        perror("getprotobyname");
+        return;
+    }
+    s = socket(AF_INET, SOCK_RAW, p->p_proto);
+    if (s < 0) {
+        perror("socket");
+        return;
+    }
+    tv.tv_sec = 1;
+    tv.tv_usec = 0;
+    setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+    // Set up host address
+    host.sin_family = AF_INET;
+    host.sin_addr.s_addr = htonl(INADDR_LOOPBACK + (0x100 * lo));
+    host.sin_port = 0;
+    ping_host(s, &host);
+    // Now try a bogus host
+    host.sin_addr.s_addr = htonl(ntohl(host.sin_addr.s_addr) + 32);
+    ping_host(s, &host);
+}
+
+void
+net_test(cyg_addrword_t p)
+{
+    int i;
+    diag_printf("Start PING test\n");
+    init_all_network_interfaces();
+#if NLOOP > 0
+    for ( i = 0; i < NLOOP; i++ )
+        ping_test_loopback( i );
+    for ( i = 0; i < NLOOP; i++ )
+        ping_test_loopback( i );
+    CYG_TEST_PASS_FINISH( "Done pinging loopback" );
+#endif
+    CYG_TEST_NA( "No loopback devs" );
+}
+
+void
+cyg_start(void)
+{
+    // Create a main thread, so we can run the scheduler and have time 'pass'
+    cyg_thread_create(CYGPKG_NET_THREAD_PRIORITY-4,// Priority - just a number
+                      net_test,                 // entry
+                      0,                        // entry parameter
+                      "Loopback ping  test",    // Name
+                      &stack[0],                // Stack
+                      STACK_SIZE,               // Size
+                      &thread_handle,           // Handle
+                      &thread_data              // Thread data structure
+            );
+    cyg_thread_resume(thread_handle);           // Start it
+    cyg_scheduler_start();
+}