IP協(xié)議故障處理之沒有借用地址
網(wǎng)絡(luò)應(yīng)用當(dāng)中出現(xiàn)的故障問題，總是讓我們應(yīng)接不暇。那么這次我們就來講解一下IP協(xié)議故障處理：接口下沒有借用到地址的相關(guān)問題。那么還是老樣子，看一下網(wǎng)絡(luò)結(jié)構(gòu)吧。
IP協(xié)議故障處理：網(wǎng)絡(luò)環(huán)境
在某次測試過程中，配置接口借用其他接口的IP地址，組網(wǎng)圖如下。
圖 IP地址借用案例組網(wǎng)圖
配置后發(fā)現(xiàn)RouterA的POS2/0/0接口無法借用GE1/0/0的IP地址。
IP協(xié)議故障處理：故障分析
查看POS2/0/0接口是否配置了地址借用，在接口視圖下執(zhí)行display this命令收集信息，得到顯示信息如下。
[RouterA-Pos2/0/0] display this#interface Pos2/0/0 link-protocol pppip address unnumbered interface GigabitEthernet1/0/0#return查看GE1/0/0接口是否配置了IP地址，在接口視圖下執(zhí)行display this interface命令收集信息，得到顯示信息如下。
- <RouterA-GigabitEtherent1/0/0> display this interfaceGigabitEthernet1/0/0 current state : UP
- Line protocol current state : DOWNDescription : To beijingRoute Port,The Maximum Transmit Unit is 1500Internet protocol processing : disabled
- IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc7d-a497
- The Vendor PN is HFBR-5710L
- Port BW: 1G, Transceiver max BW: 1G, Transceiver Mode: MultiMode
- WaveLength: 850nm, Transmission Distance: 550m
- Loopback:none, full-duplex mode, negotiation: disable, Pause Flowcontrol:Receive
- Enable and Send Enable
- Last physical up time : 2008-08-19 09:08:54
- Last physical down time : 2008-08-19 09:08:38
- Statistics last cleared:never
- Last 300 seconds input rate: 208 bits/sec, 0 packets/sec
- Last 300 seconds output rate: 200 bits/sec, 0 packets/sec
- Input: 218807 bytes, 2299 packets
- Output: 212849 bytes, 2237 packets
- Input:
- Unicast: 1429 packets, Multicast: 867 packets
- Broadcast: 3 packets, JumboOctets: 0 packets
- CRC: 0 packets, Symbol: 0 packets
- Overrun: 0 packets
- InRangeLength: 0 packets
- LongPacket: 0 packets, Jabber: 0 packets, Alignment: 0 packets
- Fragment: 0 packets, Undersized Frame: 0 packets
- RxPause: 0 packets
- Output:
- Unicast: 1430 packets, Multicast: 803 packets
- Broadcast: 4 packets, JumboOctets: 0 packets
- Lost: 0 packets, Overflow: 0 packets, Underrun: 0 packets
- TxPause: 0 packets通過顯示信息發(fā)現(xiàn)問題原因，RouterA的GE1/0/0接口沒有配置IP地址。
IP協(xié)議故障處理：操作步驟
1.在RouterA上執(zhí)行命令system-view，進(jìn)入系統(tǒng)視圖。
2.執(zhí)行命令interface gigabitethernet 1/0/0，進(jìn)入GE接口視圖。
3.執(zhí)行命令ip address 172.16.10.1 24，設(shè)置IP地址。
執(zhí)行完上述操作，可以發(fā)現(xiàn)RouterA的接口POS2/0/0可以借用接口GE1/0/0的IP地址了。
IP協(xié)議故障處理：案例總結(jié)
當(dāng)配置地址借用時首先保證被借用的接口已經(jīng)正確配置了IP地址。
