Linux<\/a>\u4e2d\u7b56\u7565\u8def\u7531\u5be6\u4f5c\u539f\u7406
\n\u50b3\u7d71\u8def\u7531\u53ea\u4f7f\u7528\u4e00\u5f35\u8def\u7531\u8868\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9700\u8981\u4f7f\u7528\u591a\u8def\u7531\u8868\uff08multiple Routing Tables)\u3002\u7b56\u7565\u8def\u7531\u6307\u5c0dIP\u5305\u6839\u64da\u7279\u5b9a\u7b56\u7565\u9032\u884c\u8def\u7531\uff0c\u4f8b\u5982\u201c\u6240\u6709\u4f86\u81ea\u7db2\u8defA\u7684\u5305\uff0c\u9078\u64c7X\u8def\u5f91\uff1b\u5176\u4ed6\u9078\u64c7Y\u8def\u5f91\u201d\uff0c\u6216\u8005\u662f\u201c\u6240\u6709TOS\u70baA\u7684\u5305\u9078\u64c7\u8def\u5f91X\uff1b\u5176\u4ed6\u9078\u865f\u8def\u5f91Y\u201d \u3002
\n\u898f\u5247\u662f\u7b56\u7565\u8def\u7531\u95dc\u9375\u6982\u5ff5\uff0c\u4ec0\u9ebc\u6a23\u7684\u5305\uff0c\u5c07\u61c9\u7528\u672c\u898f\u5247\uff08RULE\uff09\uff0c\u7b26\u5408\u672c\u898f\u5247\u7684\u5305\u5c07\u5c0d\u5176\u63a1\u53d6\u4ec0\u9ebc\u52d5\u4f5c\uff08ACTION\uff09\uff1b\u672c\u898f\u5247\u512a\u5148\u7d1a\u5225\u8d8a\u9ad8\uff0c\u898f\u5247\u8d8a\u5148\u5339\u914d\uff0c\u6578\u503c\u8d8a\u5c0f\u512a\u5148\u7b49\u7d1a\u8d8a\u9ad8\u3002
\niproute2\u5de5\u5177<\/p>\n\u5be6\u4f5c\u7b56\u7565\u8def\u7531\u914d\u7f6e\u5de5\u5177\u4e00\u822c\u7528iproute2\u5de5\u5177\u5305\u3002 Linux\u6700\u591a\u53ef\u4ee5\u652f\u63f4255\u5f35\u8def\u7531\u8868\uff0c\u5176\u4e2d\u67093\u5f35\u8868\u662f\u5167\u5efa\u7684\uff1a<\/p>\n
\u8868255\uff1a\u672c\u5730\u8def\u7531\u8868\uff08Local table\uff09\u672c\u5730\u4ecb\u9762\u4f4d\u5740\uff0c\u5ee3\u64ad\u4f4d\u5740\u4ee5\u53caNAT\u4f4d\u5740\u90fd\u5b58\u653e\u5728\u9019\u5f35\u8868\u3002\u6b64\u8def\u7531\u8868\u7531\u7cfb\u7d71\u81ea\u52d5\u7dad\u8b77\uff0c\u7ba1\u7406\u54e1\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u3002<\/p>\n
\u8868254\uff1a\u4e3b\u8def\u7531\u8868\uff08Main table\uff09\u5982\u679c\u6c92\u6709\u6307\u660e\u8def\u7531\u6240\u5c6c\u8868\uff0c\u6240\u6709\u7684\u8def\u7531\u90fd\u9810\u8a2d\u653e\u5728\u9019\u500b\u8868\u88e1\uff0c\u4e00\u822c\u4f86\u8aaa\uff0c\u820a\u8def\u7531\u5de5\u5177\uff08\u5982route\uff09\u6240\u65b0\u589e\u7684\u8def\u7531\u90fd\u6703\u52a0\u5230\u9019\u500b\u8868\u3002\u4e00\u822c\u662f\u666e\u901a\u8def\u7531\u3002<\/p>\n
\u8868253\uff1a\u9810\u8a2d\u8def\u7531\u8868\uff08Default table\uff09\u4e00\u822c\u4f86\u8aaa\u9810\u8a2d\u8def\u7531\u90fd\u653e\u5728\u9019\u5f35\u8868\u3002<\/p>\n
root:\/# ip rule show
\n0: from all lookup local
\n32766: from all lookup main
\n32767: from all lookup default
\nroot:\/#
\nroot:\/# ip route show table local
\nbroadcast 127.0.0.0 dev lo proto kernel scope link src 127.0.0.1
\nlocal 127.0.0.0\/8 dev lo proto kernel scope host src 127.0.0.1
\nlocal 127.0.0.1 dev lo proto kernel scope host src 127.0.0.1
\nbroadcast 127.255.255.255 dev lo proto kernel scope link src 127.0.0.1
\nbroadcast 192.168.1.0 dev enp9s0f0 proto kernel scope link src 192.168.1.182
\nlocal 192.168.1.182 dev enp9s0f0 proto kernel scope host src 192.168.1.182
\nbroadcast 192.168.1.255 dev enp9s0f0 proto kernel scope link src 192.168.1.182
\nbroadcast 192.168.2.0 dev enp9s0f1 proto kernel scope link src 192.168.2.182 linkdown
\nlocal 192.168.2.182 dev enp9s0f1 proto kernel scope host src 192.168.2.182
\nbroadcast 192.168.2.255 dev enp9s0f1 proto kernel scope link src 192.168.2.182 linkdown
\nbroadcast 192.168.3.0 dev enp9s0f2 proto kernel scope link src 192.168.3.182 linkdown
\nlocal 192.168.3.182 dev enp9s0f2 proto kernel scope host src 192.168.3.182
\nbroadcast 192.168.3.255 dev enp9s0f2 proto kernel scope link src 192.168.3.182 linkdown
\nbroadcast 192.168.6.0 dev enp52s0f1 proto kernel scope link src 192.168.6.183 linkdown
\nlocal 192.168.6.183 dev enp52s0f1 proto kernel scope host src 192.168.6.183
\nbroadcast 192.168.6.255 dev enp52s0f1 proto kernel scope link src 192.168.6.183 linkdown
\nroot:\/
\nroot:\/
\nroot:\/# ip route show table main
\n192.168.1.0\/24 dev enp9s0f0 proto kernel scope link src 192.168.1.182
\n192.168.1.0\/24 dev enp9s0f0 proto kernel scope link src 192.168.1.182 metric 101
\n192.168.2.0\/24 dev enp9s0f1 proto kernel scope link src 192.168.2.182 linkdown
\n192.168.3.0\/24 dev enp9s0f2 proto kernel scope link src 192.168.3.182 linkdown
\n192.168.6.0\/24 dev enp52s0f1 proto kernel scope link src 192.168.6.183 linkdown
\n \u89c4\u5219\u914d\u7f6e<\/p>\n
\u5728\u6dfb\u52a0\u89c4\u5219\u65f6\uff0c\u5fc5\u987b\u5148\u786e\u5b9a\u597d\u201c\u6761\u4ef6\u201d\u3001\u201c\u4f18\u5148\u7ea7\u522b\u201d\u53ca\u201c\u8def\u7531\u8868\u201d\uff0c\u6b64\u540e\u624d\u53ef\u6267\u884c\u6dfb\u52a0\u89c4\u5219\u64cd\u4f5c\u3002\u6761\u4ef6\u662f\u7528\u6765\u51b3\u5b9a\u54ea\u7c7b\u6570\u636e\u5305\u53ef\u4ee5\u7b26\u5408\u8fd9\u9879\u89c4\u5219\uff0c\u800c\u53ef\u7528\u6765\u5339\u914d\u7684\u5b57\u6bb5\u4e3aSource IP\u3001Destination IP\u3001Type of Service\u3001fwmark\u53cadev\u7b49\uff0c\u8fd9\u4e9b\u5b57\u6bb5\u7684\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a
\n #\u6839\u636e\u6e90IP
\nip rule add from 192.168.1.10 table 100
\nip rule add from 192.168.2.0\/24 table 200<\/p>\n
#\u6839\u636e\u76ee\u7684IP
\nip rule add to 10.0.2.1 table 100
\nip rule add to 10.0.2.0\/24 table 200
\n\u5c06fwmark\u4f5c\u4e3a\u5339\u914d\u6761\u4ef6\u65f6\uff0c\u5fc5\u987b\u642d\u914dNetfilter\u4e00\u8d77\u4f7f\u7528\u3002\u67d0\u516c\u53f8\u5bf9\u5916\u6709\u4e09\u79cd\u8def\u7531\uff0c\u5e0c\u671b\u6240\u6709HTTP\u534f\u8bae\u7ecf\u7531\u7b2c\u4e00\u6761ADSL \uff0cSMTP\u53caPOP3\u7ecf\u7531\u7b2c\u4e8c\u6761VDSL\uff0c\u5176\u4f59\u6d41\u91cf\u5219\u7ecf\u7531\u7b2c\u4e09\u6761ETH\u3002\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4\u5b9e\u73b0\u7b56\u7565\u8def\u7531\uff1a<\/p>\n
iptables -t mangle -A FORWARD -i adsl -p tcp –dport 80 -j MARK –set-mark 1
\niptables -t mangle -A FORWARD -i vdsl -p tcp –dport 25 -j MARK –set-mark 2
\niptables -t mangle -A FORWARD -i vdsl -p tcp –dport 110 -j MARK –set-mark 2
\niptables -t mangle -A FORWARD -i eth3 -j MARK –set-mark 3
\nip rule add fwmark 1 table 1
\nip rule add fwmark 2 table 2
\nip rule add fwmark 3 table 3<\/p>\n
\u7531eth2\u63a5\u53e3\u9001\u5165\u7684\u6570\u636e\u5305\u90fd\u7531eth0\u63a5\u53e3\u8f6c\u53d1\u51fa\u53bb\uff0c\u7531eth3\u63a5\u53e3\u9001\u5165\u7684\u6570\u636e\u5305\u90fd\u7531eth1\u63a5\u53e3\u8f6c\u53d1\u51fa\u53bb\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4\u5b9e\u73b0\u7b56\u7565\u8def\u7531\uff1a<\/p>\n
ip rule add dev eth2 table 1
\nip rule add dev eth3 table 3
\nip rule show\u547d\u4ee4\u6240\u663e\u793a\u5185\u5bb9\u7684\u7b2c\u4e00\u4e2a\u5b57\u6bb5\u5c31\u662f\u4f18\u5148\u7ea7\u522b\uff0c\u6570\u5b57\u8d8a\u5c0f\uff0c\u4ee3\u8868\u4f18\u5148\u7ea7\u522b\u8d8a\u9ad8\uff0c\u4e5f\u4ee3\u8868\u8fd9\u6761\u89c4\u5219\u53ef\u4ee5\u6392\u5f97\u8d8a\u9760\u524d\uff0c\u5982\u6b64\u6570\u636e\u5305\u5728\u8fdb\u884c\u6761\u4ef6\u5339\u914d\u65f6\uff0c\u5c31\u4f1a\u8d8a\u65e9\u5339\u914d\u5230\u8fd9\u6761\u89c4\u5219\u3002<\/p>\n
[root@localhost ~]# ip rule show
\n0: from all lookup local
\n32766: from all lookup main
\n32767: from all lookup default
\n[root@localhost ~]#
\n[root@localhost ~]# ip rule add from 192.168.1.0\/24 table 1 prio 10
\n[root@localhost ~]# ip rule add from 192.168.2.0\/24 table 2 prio 20
\n[root@localhost ~]#
\n[root@localhost ~]# ip rule show
\n0: from all lookup local
\n10: from 192.168.1.0\/24 lookup 1
\n20: from 192.168.2.0\/24 lookup 2
\n32766: from all lookup main
\n32767: from all lookup default
\nip\u547d\u4ee4\u63d0\u4f9b\u7684\u5220\u9664\u89c4\u5219\u7684\u65b9\u5f0f\u5341\u5206\u7075\u6d3b\uff0c\u4f8b\u5982\uff0c\u8981\u5220\u9664\u4e0b\u5217\u7b2c2\u6761\u89c4\u5219\uff0c\u53ef\u4ee5\u5206\u522b\u4f7f\u7528\u201c\u4f18\u5148\u7ea7\u522b\u201d\u3001\u201c\u6761\u4ef6\u201d\u53ca\u201c\u8def\u7531\u8868\u201d\u5f53\u4e2d\u4efb\u4f55\u4e00\u4e2a\u552f\u4e00\u7684\u503c\u6765\u8bbe\u7f6e\u6240\u9700\u5220\u9664\u7684\u89c4\u5219\u3002<\/p>\n
ip rule del prio 10
\nip rule del from 192.168.1.0\/24
\nip rule del table 1
\nip rule del from 192.168.1.0\/24 table 1 prio 10<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8f49\u81eaToToSun \u534f\u8bae\u68ee\u6797 \u6982\u5ff5 Linux\u4e2d\u7b56\u7565\u8def\u7531\u5be6\u4f5c\u539f\u7406 \u50b3\u7d71\u8def\u7531\u53ea\u4f7f\u7528\u4e00\u5f35\u8def\u7531\u8868\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9700 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[336],"class_list":["post-6132","post","type-post","status-publish","format-standard","hentry","category-killtest","tag-117-201"],"_links":{"self":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/6132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/comments?post=6132"}],"version-history":[{"count":1,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/6132\/revisions"}],"predecessor-version":[{"id":6133,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/6132\/revisions\/6133"}],"wp:attachment":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/media?parent=6132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/categories?post=6132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/tags?post=6132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}