请问各位用过EasyARM2200开发板附赠的ZLGIP的朋友，这个TCP/IP协议栈支不支持从不同类的IP网段中的PING操作，例如从172.16.2.113（B类网址，PC机）PING10.2.73.13（A类网址，开发板），我这里好像是PING不同的，监视如下：
Ping from same network:
14:10:32.966850 00:08:a1:74:10:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: arp who-has 10.2.73.13 tell 10.2.73.1
14:10:32.971261 00:25:86:94:d3:cc > 00:08:a1:74:10:19, ethertype ARP (0x0806), length 110: arp reply 10.2.73.13 is-at 00:25:86:94:d3:cc
14:10:32.971291 00:08:a1:74:10:19 > 00:25:86:94:d3:cc, ethertype IPv4 (0x0800), length 98: 10.2.73.1 > 10.2.73.13: ICMP echo request, id 36146, seq 1, length 64
14:10:32.974074 00:25:86:94:d3:cc > 00:08:a1:74:10:19, ethertype IPv4 (0x0800), length 98: 10.2.73.13 > 10.2.73.1: ICMP echo reply, id 36146, seq 1, length 64
Ping from other network:
14:16:33.123012 00:08:a1:74:10:19 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: arp who-has 10.2.73.13 tell 10.2.73.1
14:16:33.132905 00:25:86:94:d3:cc > 00:08:a1:74:10:19, ethertype ARP (0x0806), length 110: arp reply 10.2.73.13 is-at 00:25:86:94:d3:cc
14:16:33.132975 00:08:a1:74:10:19 > 00:25:86:94:d3:cc, ethertype IPv4 (0x0800), length 98: 172.16.2.113 > 10.2.73.13: ICMP echo request, id 34662, seq 1, length 64
14:16:33.143623 00:25:86:94:d3:cc > 00:00:00:00:00:00, ethertype IPv4 (0x0800), length 98: 10.2.73.13 > 172.16.2.113: ICMP echo reply, id 34662, seq 1, length 64
为何最后开发板上报的MAC都是00了？ |
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