> For the complete documentation index, see [llms.txt](https://anida-huang.gitbook.io/computer-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://anida-huang.gitbook.io/computer-network/qi-zhong/20200930-introduction-router-setting.md).

# 20200930 Introduction Router Setting

## 課堂資料

#### Cisco router 基本設定：

{% embed url="<https://giboss.pixnet.net/blog/post/26807628>" %}

#### Administrative Distance (AD) 管理距離：

{% embed url="<https://www.jannet.hk/zh-Hant/post/administrative-distance-ad/>" %}

![模式切換](/files/-MJPgLOtl36ecYFRqFuh)

* **User Mode：一般使用者模式**
* **Priviledged Mode：特權模式**
* **Config Mode：設定模式**

## 課堂練習

### 設定Router ( R2 與 R1 設定相同 )

![](/files/-MIRuf4LLGOa-39rRVqj)

![](/files/-MIRuh_12lREJNcGFzhi)

![](/files/-MIRujwBXrYf7CyoHqgW)

![](/files/-MIRum8ByFA3bJqM4-SZ)

![](/files/-MIRuqeIA_WJVaKS5OHX)

> 進入特權模式

```
enable
```

![](/files/-MIRusYxFaqCxWu98is8)

![](/files/-MIRutxe8rmgGe0vt2FW)

> 進入設定模式

```
conf t
```

![](/files/-MIRuwCOxjYChJsZlyhk)

設定路由名稱

{% tabs %}
{% tab title="R1" %}

```
hostname R1
```

![](/files/-MIRuyWuRSTUJOsJLeFU)
{% endtab %}

{% tab title="R2" %}

```
hostname R2
```

{% endtab %}
{% endtabs %}

> 離開超級模式

```
^Z
```

![](/files/-MIRv-_feJOvoNBT5FqN)

{% hint style="info" %}

#### `^Z：ctrl + z`

{% endhint %}

> 寫入快取

```
writ

// write memory
```

![](/files/-MIRv1bigfeRJdOgCuXG)

> 進入介面進行設定

```
int e0/0
```

> 避免進行關機作業

```
no shutdown
```

![](/files/-MIRv4M6FGTL-JzGwjs7)

{% tabs %}
{% tab title="R1" %}

> 設定 R1&#x20;

```
ip addr 12.1.1.1 255.255.255.0
```

> 取消 R1 IP

```
no ip addr 12.1.1.1 255.255.255.0
```

{% hint style="danger" %}
IP 前面加個 no 同等取消 IP
{% endhint %}

> 顯示每一個路由器的 IP 位置資訊

```
show ip int brief
```

![新增 R1 IP](/files/-MJ0-5-u8_lqVfPSLM-Q)

![取消 R1 IP](/files/-MJxFZnBCaCq4OSdVvcE)

> R1 ping R2

```
ping 12.1.1.2
```

{% endtab %}

{% tab title="R2" %}

> 設定 R2

```
ip addr 12.1.1.2 255.255.255.0
```

> 取消R2 IP

```
no ip addr 12.1.1.2 255.255.255.0
```

{% hint style="danger" %}
IP 前面加個 no 同等取消 IP
{% endhint %}

> 顯示每一個路由器的 IP 位置資訊

```
show ip int brief
```

![](/files/-MJ0-99yhuVdN4GPEdY6)

![](/files/-MJxGHHqytsLgdHeOVFz)

> R2 ping R1

```
ping 12.1.1.1
```

{% endtab %}
{% endtabs %}

#### 設定enable 密碼

> 設定密碼

```
enable password [密碼]
```

![](/files/-MJx7f9GG5U33-fyxWOH)

> 登入enable

![](/files/-MJx8JPxcSxlSPnXt3QV)

{% hint style="warning" %}
在離開特權模式並重新登入後，需輸入enable 密碼進行登入
{% endhint %}

#### 設定輔助密碼(aux)

{% hint style="success" %}
允許使用Console線以Telnet方式登入
{% endhint %}

>

```
line aux 0
```

> 設定密碼

```
password [密碼]
```

> 登入

```
login
```

>

```
transport input telnet
```

![](/files/-MJxCQ4AmnNvkg0uEbiI)

>

```
show run
```

![](/files/-MJxBmR-HQMT79jnt0MP)

![](/files/-MJxCxkKqyMkuByCF5lf)

#### VPC

> 新增VPC節點

![](/files/-MJxHiYfviqsMpp81kN0)

> 進入 e0/1 介面

```
int e0/1
```

> 新增 e0/1 IP&#x20;

```
ip addr 192.168.1.1 255.255.255.0
```

>

```
no shutdown
```

> 查詢已設置IP

```
do sh ip int brief
```

{% hint style="danger" %}
設定模式下若要查詢 IP，在 show 之前加上 do 即可
{% endhint %}

> 新增 VPC IP

```
ip dhcp
```

> 查詢

```
sh ip
```

> ping

```
ping 192.168.1.1

ping 12.1.1.2

ping 12.1.1.1
```

![](/files/-MJxOok-SJBAgPD8wbeB)

#### R1、R2

> 特權模式下 debug ip

```
debug ip icmp
```

![](/files/-MK0Q7u18dNT8KDfcLUT)

![](/files/-MK0PQaVv5_gqwZtv5Ff)

{% tabs %}
{% tab title="R1" %}

#### 查詢路由IP

```
ip route ?
```

>

```
ip route 2.2.2.2 255.255.255.255 12.1.1.2
```

>

```
ip route 3.3.3.3 255.255.255.255 12.1.1.2
```

>

```
ip route 192.168.1.0 255.255.255.0 12.1.1.2
```

>

```
do ping 2.2.2.2
```

{% endtab %}
{% endtabs %}


---

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