Tuesday, July 13, 2010

Easy to break the routing table bible Experience



Current Routing:

destination network segment purpose

subnet mask

interface to reach the export destination ip of the router

the entrance of the next hop router gateway ip, router and gateway interface defined by a router transferred to the next link, usually, interface and gateway are the same segment of the metric hop count, which records the quality of routing, in general, , if you have another route record to reach the same destination, the router will use a small piece of the routing metric value.


Source:

Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.123.254 192.168.123.88 1
0.0.0.0 0.0.0.0 192.168.123.254 192.168.123.68 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.123.0 255.255.255.0 192.168.123.68 192.168.123.68 1
192.168.123.0 255.255.255.0 192.168.123.88 192.168.123.88 1
192.168.123.68 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.123.88 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.123.255 255.255.255.255 192.168.123.68 192.168.123.68 1
192.168.123.255 255.255.255.255 192.168.123.88 192.168.123.88 1
224.0.0.0 224.0.0.0 192.168.123.68 192.168.123.68 1
224.0.0.0 224.0.0.0 192.168.123.88 192.168.123.88 1
255.255.255.255 255.255.255.255 192.168.123.68 192.168.123.68 1
Default Gateway: 192.168.123.254
... ...

Article

Default Routing: The meaning is, when a segment is not the purpose of packet routing your record, then your router to send the packet to that where! Default routing gateway is connected to your default gateway on the route record of the decision means is: when I received a packet segment is not the purpose of recording my route, I will put the data packets through 192.168 .123.88 This interface is sent to 192.168.123.254 this address, the address is an interface to the next router, so that the packet is delivered to the next router can handle, and not mine. Line quality of the routing record.

Article

Default route: The route record means: when I received a packet segment is not the purpose of recording my route, I will put the packets sent to this interface by 192.168.123.68 192.168.123.254 to this address, the address is an interface to the next router, so that the packet is delivered to the next router can handle, and not mine. Line quality of the routing record.

Article

Local Loop: 127.0.0.0 all addresses in this network segment point to their own machine, if you receive such a data, should be sent to the line where the quality of the routing record.

Article

Straight section of the route network record: When the router receives sent straight packet network section on how to handle this situation, routing and gateway interface record is the same.

When I received a packet segment is 192.168.123.0 purpose, I will put the packets directly via 192.168.123.68 sent this interface, because the port directly connected to 192.168.123.0 the network segment, the route record line quality.

Article

Network routing record straight section

褰撴垜鎺ユ敹鍒颁竴涓暟鎹寘鐨勭洰鐨勭綉娈垫槸192.168.123.0鏃讹紝鎴戜細灏嗚鏁版嵁鍖呴?杩?92.168.123.88杩欎釜鎺ュ彛鐩存帴鍙戦?鍑哄幓锛屽洜涓鸿繖涓鍙g洿鎺ヨ繛鎺ョ潃192.168.123.0杩欎釜缃戞锛岃璺敱璁板綍鐨勭嚎璺川閲忋?

绗叚鏉?br />
鏈湴涓绘満璺敱锛氬綋璺敱鍣ㄦ敹鍒板彂閫佺粰鑷繁鐨勬暟鎹寘鏃跺皢濡備綍澶勭悊

褰撴垜鎺ユ敹鍒颁竴涓暟鎹寘鐨勭洰鐨勭綉娈垫槸192.168.123.68鏃讹紝鎴戜細灏嗚鏁版嵁鍖呮敹涓嬶紝鍥犱负杩欎釜鏁版嵁鍖呮椂鍙戦?缁欐垜鑷繁鐨勶紝璇ヨ矾鐢辫褰曠殑绾胯矾璐ㄩ噺銆?br />
绗竷鏉?br />
鏈湴涓绘満璺敱锛氬綋璺敱鍣ㄦ敹鍒板彂閫佺粰鑷繁鐨勬暟鎹寘鏃跺皢濡備綍澶勭悊

褰撴垜鎺ユ敹鍒颁竴涓暟鎹寘鐨勭洰鐨勭綉娈垫槸192.168.123.88鏃讹紝鎴戜細灏嗚鏁版嵁鍖呮敹涓嬶紝鍥犱负杩欎釜鏁版嵁鍖呮椂鍙戦?缁欐垜鑷繁鐨勶紝璇ヨ矾鐢辫褰曠殑绾胯矾璐ㄩ噺銆?br />
绗叓鏉?br />
鏈湴骞挎挱璺敱锛氬綋璺敱鍣ㄦ敹鍒板彂閫佺粰鐩磋仈缃戞鐨勬湰鍦板箍鎾椂濡備綍澶勭悊

褰撴垜鎺ユ敹鍒板箍鎾暟鎹寘鐨勭洰鐨勭綉娈垫槸192.168.123.255鏃讹紝鎴戜細灏嗚鏁版嵁浠?92.168.123.68鎺ュ彛浠ュ箍鎾殑褰㈠娍鍙戦?鍑哄幓锛岃璺敱璁板綍鐨勭嚎璺川閲忋?

绗節鏉?br />
鏈湴骞挎挱璺敱锛氬綋璺敱鍣ㄦ敹鍒板彂閫佺粰鐩磋仈缃戞鐨勬湰鍦板箍鎾椂濡備綍澶勭悊

褰撴垜鎺ユ敹鍒板箍鎾暟鎹寘鐨勭洰鐨勭綉娈垫槸192.168.123.255鏃讹紝鎴戜細灏嗚鏁版嵁浠?92.168.123.88鎺ュ彛浠ュ箍鎾殑褰㈠娍鍙戦?鍑哄幓锛岃璺敱璁板綍鐨勭嚎璺川閲忋?

绗崄鏉?br />
缁勬挱璺敱锛氬綋璺敱鍣ㄦ敹鍒颁竴涓粍鎾暟鎹寘鏃惰濡備綍澶勭悊銆??

褰撴垜鎺ユ敹鍒扮粍鎾暟鎹寘鏃讹紝鎴戜細灏嗚鏁版嵁浠?92.168.123.68鎺ュ彛浠ョ粍鎾殑褰㈠娍鍙戦?鍑哄幓锛岃璺敱璁板綍鐨勭嚎璺川閲忋?

绗崄涓?潯

缁勬挱璺敱锛氬綋璺敱鍣ㄦ敹鍒颁竴涓粍鎾暟鎹寘鏃惰濡備綍澶勭悊銆??

褰撴垜鎺ユ敹鍒扮粍鎾暟鎹寘鏃讹紝鎴戜細灏嗚鏁版嵁浠?92.168.123.88鎺ュ彛浠ョ粍鎾殑褰㈠娍鍙戦?鍑哄幓锛岃璺敱璁板綍鐨勭嚎璺川閲忋?

绗崄浜屾潯

骞挎挱璺敱锛氬綋璺敱鍣ㄦ敹鍒颁竴涓粷瀵瑰箍鎾椂璇ュ浣曞鐞?br />
褰撴垜鎺ユ敹鍒扮粷瀵瑰箍鎾暟鎹寘鏃讹紝灏嗚鏁版嵁鍖呬涪寮冩帀銆?br />






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