华为3层交换机如何解决vlan和不同网段跨交换机之间的通信问题? 华为三层交换机与二层交换机不同VLAN间如何通信
\u534e\u4e3a\u4e09\u5c42\u4ea4\u6362\u673a\u5982\u4f55\u5b9e\u73b0\u4e0d\u540cvlan\u95f4\u7684\u901a\u4fe1\u534e\u4e3a\u8ba4\u8bc1HCIA\u6570\u901aDatacom,\u5b9e\u6218\u8bb2\u89e3\u4e0d\u540cVLAN\u901a\u4fe1\u7684\u4e09\u79cd\u89e3\u51b3\u65b9\u6848
\u4e0d\u540cVLAN\u4e4b\u95f4\u9700\u8981\u4e09\u5c42\u901a\u4fe1,\u600e\u4e48\u53bb\u901a\u4fe1?\u6211\u7b80\u5355\u8bf4\u4e0b,\u5c31\u8bf4VLAN2\u7684\u600e\u4e48\u53bb\u8bbf\u95eeVLAN3\u7684\u7535\u8111\u4ee5ping\u4e3a\u4f8b.
\u9996\u5148VLAN2\u5c06ICMP(ping\u62a5\u6587)\u8bf7\u6c42\u62a5\u6587\u4ea4\u7ed9\u7f51\u5173,\u7f51\u5173\u5219\u67e5\u770b\u8be5\u7535\u8111\u9700\u8981\u8bbf\u95ee\u7684\u662f\u7684IP\u662f\u4e0d\u662f\u8fd9\u4e00\u4e2a\u6bb5\u7684,\u662f\u5c31\u662f\u76f4\u63a5\u8f6c\u53d1,\u4e0d\u662f\u5219\u9700\u8981\u8def\u7531,\u63a5\u7740\u67e5\u627e\u8def\u7531.\u5982\u679c\u6709\u90a3\u5c31\u5c06\u8fd9\u4e2a\u6570\u636e\u5305\u5904\u7406\u6254\u7ed9VLAN3\u7684\u7f51\u5173,VLAN3\u7684\u7f51\u5173\u4e00\u770b\u662f\u8bf7\u6c42\u4ed6\u8fd9\u4e2a\u6bb5,\u53ef\u4ee5\u5230\u8fbe\u90a3\u5c31\u76f4\u63a5\u8f6c\u53d1\u5230\u90a3\u53f0\u7535\u8111\u4e0a.\u90a3VLAN3\u7684\u7535\u8111\u5c31\u6536\u5230\u4e86\u6765\u81eaVLAN2\u7684ICMP\u8bf7\u6c42\u62a5\u6587.\u7136\u540e\u4ed6\u5c06\u56de\u590dICMP reply\u62a5\u6587,\u4f20\u8f93\u8fc7\u7a0b\u662f\u4e0a\u8ff0\u7684\u9006\u5411.\u5f53VLAN2\u7684\u7535\u8111\u6536\u5230\u4e86VLAN3\u7684ICMP reply\u62a5\u6587\u4e4b\u540e\u90a3\u80fdping\u901a\u4e86.
\u5f53\u7136\u4e0a\u8ff0\u60c5\u51b5\u6ca1\u6709\u8003\u8651ARP\u8bf7\u6c42\u62a5\u6587,ACL\u8fc7\u6ee4,\u4ee5\u53caVLAN3\u7535\u8111\u548cVLAN2\u7684\u7535\u8111\u81ea\u5e26\u7684\u9632\u706b\u5899.
\u8bf4\u7684\u8fd8\u7b97\u901a\u4fd7,\u4e0d\u77e5\u9053\u80fd\u4e0d\u80fd\u7406\u89e3.
s1:
ip route-static 0.0.0.0 0.0.0.0 192.168.7.1
s2:
ip route-static 192.168.0.0 255.255.252.0 192.168.7.2
ip route-static 192.168.6.0 255.255.255.0 192.168.10.1
s3:
ip route-static 0.0.0.0 0.0.0.0 192.168.10.2
这样把s1、s3当作边界路由器，把s2当作核心路由器的方案简单易配；
最简单的直接上动态路由协议
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