一、怎么查看路由器開(kāi)放端口

我估計(jì)你用的是普通的小型路由器，可能路由器上有防火墻功能，1701至1704為非熟知端口一般不會(huì)做限制。

很可能是你pc的上的防火墻上把端口關(guān)閉了，檢查下防火墻的設(shè)置，啟動(dòng)財(cái)務(wù)軟件，在運(yùn)行里輸入cmd,在console窗口里輸入netstate

-a

檢查端口1701至1704是否是listen狀態(tài)。

如果是listen狀態(tài)證明本地端口已經(jīng)打開(kāi)可以進(jìn)行tcp連接，如果還是無(wú)法連接。

可能是你的isp提供的接入禁止使用端口1701至1704.聯(lián)系你的isp。

如果公司有硬件防火墻或者路由器上帶有防火墻功能，如果提供web配置方式可以使用web頁(yè)面進(jìn)行配置，里面應(yīng)該有相關(guān)選項(xiàng)(圖文并茂比較簡(jiǎn)單直觀(guān)）。

如果web配置中無(wú)法提供對(duì)端口過(guò)濾功能的配置就采用本地配置方式。

使用rs—232串口線(xiàn)纜連接路由器的console口和pc機(jī)的串口。

在pc機(jī)上開(kāi)始->附件->通訊->超級(jí)終端，設(shè)置好通信參數(shù)，通常是波特率9600，8位數(shù)據(jù)位，1位停止位，無(wú)奇偶校驗(yàn)，無(wú)流控，不同廠(chǎng)商可能參數(shù)不一致，請(qǐng)查看產(chǎn)品手冊(cè)。

進(jìn)入后由于可能有不同的操作系統(tǒng)常用的有ios（思科設(shè)備）和vrp（華為的設(shè)備）兩種操作系統(tǒng)大同小異（但是通常的配置都是在第三層上的配置不涉及傳輸層的配置，打開(kāi)tcp端口應(yīng)該是集成有防火墻的路由器的配置）具體配置命令還要查看產(chǎn)品手冊(cè)。

我能提供的信息就這么多。

二、如何查看路由器端口號(hào)

用netstat -a -n命令查看。

用state命令查看相關(guān)訊息：

LISTEN：偵聽(tīng)來(lái)自遠(yuǎn)方的TCP端口的連接請(qǐng)求

SYN-SENT：再發(fā)送連接請(qǐng)求后等待匹配的連接請(qǐng)求

SYN-RECEIVED：再收到和發(fā)送一個(gè)連接請(qǐng)求后等待對(duì)方對(duì)連接請(qǐng)求的確認(rèn)

ESTABLISHED：代表一個(gè)打開(kāi)的連接

FIN-WAIT-1：等待遠(yuǎn)程TCP連接中斷請(qǐng)求，或先前的連接中斷請(qǐng)求的確認(rèn)

FIN-WAIT-2：從遠(yuǎn)程TCP等待連接中斷請(qǐng)求

CLOSE-WAIT：等待從本地用戶(hù)發(fā)來(lái)的連接中斷請(qǐng)求

CLOSING：等待遠(yuǎn)程TCP對(duì)連接中斷的確認(rèn)

LAST-ACK：等待原來(lái)的發(fā)向遠(yuǎn)程TCP的連接中斷請(qǐng)求的確認(rèn)

TIME-WAIT：等待足夠的時(shí)間以確保遠(yuǎn)程TCP接收到連接中斷請(qǐng)求的確認(rèn)

CLOSED：沒(méi)有任何連接狀態(tài)

三、如何查詢(xún)路由端口信息

1.查詢(xún)機(jī)器用了哪個(gè)端口

display arp dynamic

Type: S-Static D-Dynamic

IP Address MAC Address VLAN ID Port Name Aging Type

10.248.2.190 0000-5e00-010a 220 GigabitEthernet6/0/48 12 D

10.248.2.189 0018-8288-64be 220 GigabitEthernet6/0/1 19 D

10.248.2.188 0018-8289-87e3 220 GigabitEthernet6/0/48 19 D

10.248.3.244 0018-8270-996b 210 GigabitEthernet6/0/30 4 D

10.248.3.246 0000-5e00-010a 210 GigabitEthernet6/0/30 13 D

10.248.3.245 0018-8287-c277 210 GigabitEthernet6/0/1 16 D

10.248.3.195 000f-e2b2-5a0a 110 GigabitEthernet6/0/1 18 D

或者查看MAC地址對(duì)應(yīng)的端口

display mac-address

MAC ADDR VLAN ID STATE PORT INDEX AGING TIME(s)

0000-5e00-0101 10 Learned GigabitEthernet6/0/1 AGING

0003-b24a-9308 10 Learned GigabitEthernet6/0/1 AGING

001f-290d-a94b 10 Learned GigabitEthernet6/0/1 AGING

001f-290d-a968 10 Learned GigabitEthernet6/0/1 AGING2.通過(guò)查詢(xún)配置信息查詢(xún)商品名字

display current-configuration

interface GigabitEthernet6/0/42

port access vlan 110

#

interface GigabitEthernet6/0/43

port access vlan 110

#

interface GigabitEthernet6/0/44

port access vlan 20

#

interface GigabitEthernet6/0/45

#

interface GigabitEthernet6/0/46

#

interface GigabitEthernet6/0/47

#

interface GigabitEthernet6/0/48

port access vlan 220

3.查看端口狀態(tài)

display interface GigabitEthernet6/0/31

GigabitEthernet6/0/31 current state : UP

IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 000f-e2b2-5b17

The Maximum Transmit Unit is 1500

Media type is Twisted pair, loopback not set

Port hardware type is 1000_BASE_T

1000Mbps-speed mode, Full-duplex mode

Link speed type is autonegotiation, Link duplex type is autonegotiation

Flow-control is not enabled

The Maximum Frame Length is 1536

Allow jumbo frame to pass

PVID: 110

Mdi type: auto

Port link-type: access

Tagged VLAN ID : none

Untagged VLAN ID : 110

Last 300 seconds input: 0 packets/sec 5 bytes/sec

Last 300 seconds output: 6 packets/sec 1453 bytes/sec

Input(total): 13184423 packets, 2298060871 bytes

- broadcasts, - multicasts

Input(normal): 13184423 packets, - bytes

512120 broadcasts, 10 multicasts

Input: 0 input errors, 0 runts, - giants, 0 throttles, 0 CRC

0 frame, - overruns, - aborts, - ignored, - parity errors

Output(total): 102676481 packets, 32553486104 bytes

- broadcasts, - multicasts, - pauses

Output(normal): 102676481 packets, - bytes

850988 broadcasts, 48393324 multicasts, 0 pauses

Output: 0 output errors, - underruns, - buffer failures

0 aborts, 0 deferred, 0 collisions, 0 late collisions

- lost carrier, - no carrier

Receive Packet Peak Value Info: 50985214 bytes/sec, happened at 16:8:31 4-8-2010

Transmit Packet Peak Value Info: 95747209 bytes/sec, happened at 10:32:16 12-15-20094.對(duì)于一個(gè)端口對(duì)應(yīng)多個(gè)IP的需要查到這個(gè)網(wǎng)卡地址

先登陸第一臺(tái)路由器，查看IP

display arp dynamic

Type: S-Static D-Dynamic

IP Address MAC Address VLAN ID Port Name Aging Type

10.248.2.190 0000-5e00-010a 220 GigabitEthernet6/0/48 12 D

10.248.2.189 0018-8288-64be 220 GigabitEthernet6/0/1 19 D

10.248.2.188 0018-8289-87e3 220 GigabitEthernet6/0/48 19 D

10.248.3.244 0018-8270-996b 210 GigabitEthernet6/0/30 4 D

10.248.3.246 0000-5e00-010a 210 GigabitEthernet6/0/30 13 D

10.248.3.245 0018-8287-c277 210 GigabitEthernet6/0/1 16 D

10.248.3.195 000f-e2b2-5a0a 110 GigabitEthernet6/0/1 18 D

10.248.2.3 000f-e2b2-5a0a 10 GigabitEthernet6/0/1 13 D

10.248.2.13 001f-290d-a96c 10 GigabitEthernet6/0/1 13 D

10.248.2.31 0023-7da9-9f8d 10 GigabitEthernet6/0/18 14 D

10.248.2.36 0023-7da9-9f5c 10 GigabitEthernet6/0/21 14 D

10.248.2.14 001f-290d-a968 10 GigabitEthernet6/0/1 15 D

10.248.2.28 0023-7da9-8ff7 10 GigabitEthernet6/0/17 15 D

10.248.2.32 0023-7da9-9f8d 10 GigabitEthernet6/0/18 15 D

10.248.2.40 0023-7da9-9f3b 10 GigabitEthernet6/0/22 15 D

10.248.2.20 001f-290d-a94b 10 GigabitEthernet6/0/1 15 D

10.248.2.62 0000-5e00-0101 10 GigabitEthernet6/0/1 15 D

10.248.2.41 0000-5e00-0101 10 GigabitEthernet6/0/1 15 D

10.248.2.16 001f-290d-a91e 10 GigabitEthernet6/0/35 15 D

10.248.2.24 001f-290d-a957 10 GigabitEthernet6/0/36 15 D

10.248.2.11 001f-290d-a96c 10 GigabitEthernet6/0/1 19 D

10.248.2.55 0000-5e00-0101 10 GigabitEthernet6/0/1 19 D

10.248.2.19 001f-290d-a94b 10 GigabitEthernet6/0/1 19 D

10.248.2.23 001f-290d-a957 10 GigabitEthernet6/0/36 20 D

10.248.2.35 0023-7da9-9f5c 10 GigabitEthernet6/0/21 20 D

10.248.2.61 0003-b24a-9308 10 GigabitEthernet6/0/1 20 D

10.248.2.60 0003-b24a-9548 10 GigabitEthernet6/0/38 20 D

再登陸第二臺(tái)路由器

display mac-address vlan 10

MAC ADDR VLAN ID STATE PORT INDEX AGING TIME(s)

0000-5e00-010a 10 Learned GigabitEthernet6/0/1 AGING

0003-b24a-9548 10 Learned GigabitEthernet6/0/1 AGING

000f-e2b2-5b18 10 Learned GigabitEthernet6/0/1 AGING

001f-290d-a91e 10 Learned GigabitEthernet6/0/1 AGING

001f-290d-a94f 10 Learned GigabitEthernet6/0/1 AGING

001f-290d-a957 10 Learned GigabitEthernet6/0/1 AGING

001f-290d-a961 10 Learned GigabitEthernet6/0/1 AGING

0023-7da9-8ff7 10 Learned GigabitEthernet6/0/1 AGING

0023-7da9-9f3b 10 Learned GigabitEthernet6/0/1 AGING

0023-7da9-9f5c 10 Learned GigabitEthernet6/0/1 AGING

0023-7da9-9f8d 10 Learned GigabitEthernet6/0/1 AGING

001f-290d-a96c 10 Learned GigabitEthernet6/0/33 AGING

001f-290d-a968 10 Learned GigabitEthernet6/0/34 AGING

001f-290d-a94b 10 Learned GigabitEthernet6/0/37 AGING

0000-5e00-0101 10 Learned GigabitEthernet6/0/38 AGING

0003-b24a-9308 10 Learned GigabitEthernet6/0/38 AGING--- 16 mac address(es) found in vlan 10 --- 這樣就可以查出10.248.2.13這個(gè)IP用的是GigabitEthernet6/0/33這個(gè)端口