1992.10.28

SUBJECT: (Static) Routing example

MEANING OF THIS MEMO:
"제 1회 연구 전산망 워크샵/튜토리얼 자료집" p229를 재구성함.
복잡한 network에서의 실제 static route를 잡는 예제로 유용할 것임.

CONTENTS:
0. Network 구성도
1. "werner"의 static routing
2. "larry"의 static routing

DESCRIPTION:
0. Network 구성도
                                      Hill-subnet
      |--------------------------------| 128.20.6
           |①        |②         |③                +-------+  +-------+
      +--------+  +--------+  +-------+              |  ceo  |  |  cfo  |
      | Hill   |  | senate |  | house |              +-------+  +-------+
      | router |  +--------+  +-------+                  |②        |③
      +--------+                         |------------------------------| 128.20.5
           |                                   |①                Directors-subnet
      +--------+                         +-----------+ 
      | DC     |  +--------+             | Directors |
      | router |  | netman |             | router    |
      +--------+  +--------+             +-----------+
           |⑥        |①                      |⑤                                 Backbone
    ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫ 128.20.1
                                   |③                        |②          |⑦
                             +-----------+               +--------+    le1 |
      +-------+  +-------+   | Marketing |               | R & D  |    +--------+
      |  moe  |  | larry |   | router    |               | router |    | werner |
      +-------+  +-------+   +-----------+               +--------+    +--------+
          |③         |②          |①                        |①      le0 |②
      |-----------------------------------| 128.20.3     |--------------------------| 128.20.2
          |                         Marketing-subnet              |④          |③    R&D-subnet
      +--------+                                              +--------+  +---------+
      |////|                                              | wilbur |  | orville |
      | Bridge |       +-------+                              +--------+  +---------+
      |////|       | curly |
      +--------+       +-------+
          |               | ②
      |---------------------------| 128.20.4
                      Marketing Annex subnet
  
1. "werner"의 static routing
   (1) route add
                ┬          ┬  Basic    ┬  route add  127.0.0.1  127.0.0.1  (lo0를 잡음)
                │  Simple  │  routing  │  route add  128.20.2   127.20.2.2 (le0를 잡음)
                │  routing │           ┴  route add  128.20.1   127.20.1.7 (le1을 잡음)
                │          │
       Full     │          ┴               route add  default    128.20.2.1  1 (le0를 잡음)
       routing  │
                │                           route add  128.20.3.0 128.20.1.3  1 (le1을 잡음)
                │                           route add  128.20.4.0 128.20.1.3  1 (le1을 잡음)
                │                           route add  128.20.5.0 128.20.1.5  1 (le1을 잡음)
                ┴                           route add  128.20.6.0 128.20.1.6  1 (le1을 잡음)
    (2) routing table
        % netstat -nr
         Destination       Gateway        Flags  Refcnt  Use     Interface
          127.0.0.1         127.0.0.1      UH     3       0       lo0
          128.20.2          128.20.2.2     U      4       95778   le0
          default           128.20.2.1     UG     0       0       le0  
          128.20.1          128.20.1.7     U      4       95778   le1
          128.20.3          128.20.1.3     UG     0       0       le1
          128.20.4          128.20.1.3     UG     0       0       le1
          128.20.5          128.20.1.5     UG     0       0       le1
          128.20.6          128.20.1.6     UG     0       0       le1

2. "larry"의 static routing
     route add default     128.20.3.1
     route add 128.20.4.0  larry 0 (Bridge를 다루기 위한 routing)

    

Revision History
Created       on Oct. 28 ,1992