维护日志

7月3日玖佰易网络维护日志

Posted by Eric on July 3, 2020

Description 故障描述

  • 三天前不能上网，内网通讯正常（打印机服务）

  • 平时网络可访问，但比较慢

Issue 发现的问题

  • 检查路由器（20-DC-E6-86-A8-AA）硬件接口，WAN口、LAN口乱接
  • 检查路由器Web面板，上网方式为PPPoE、WAN口未接入
  • 网关设置为192.168.1.2，未打开DHCP服务器
  • 地址池可能存在对冲

网络结构及设备信息一览

process

母路由（位于厂外）

类型：路由器

MAC地址：20-6B-E7-E7-7C-47

IP地址（Web访问地址）：192.168.1.1

启用DHCP服务：是

  • DHCP地址池
    • 开始地址：192.168.1.100
    • 结束地址：192.168.1.199
  • 租期：120min
  • 网关：Default 192.168.1.1
  • DNS服务器：未定义
  • Web面板密码：***45****（出于安全考虑，密码明文不予展示）

子路由（玖佰易天花板上）

类型：路由器

MAC地址：20-DC-E6-86-A8-AA

IP地址（Web访问地址）：192.168.2.1

启用DHCP服务：是

  • DHCP地址池
    • 开始地址：192.168.1.100
    • 结束地址：192.168.1.199
  • 租期：120min
  • 网关：Default 192.168.1.1
  • DNS服务器：未定义

打印机

类型：打印机

生产厂商：SHARP

产品型号/SerialNumber：MX-M310N/71226611**

MAC地址：00-22-F3-9D-5F-28

IP地址（Web访问地址）：192.168.2.111

备注：未使用DHCP服务

会计电脑

类型：终端

计算机名：YR2019

MAC地址：00-E0-4C-36-28-D8

IP地址（Web访问地址）：DHCP指派

生管电脑

类型：终端

计算机名：USER-20190505RM

MAC地址：00-E0-B6-0F-9D-3B

IP地址（Web访问地址）：DHCP指派

故障分析及结论

  1. 无法访问网络 原因分析
    1. 路由器接口、配置紊乱，直接导致路由器无法正常访问网络
    2. 母路由器当时未连接互联网，直接导致无法访问网络
    3. IP地址对冲，导致网络连接不稳定

关闭DHCP服务虽可避免(3)问题，但是安全性存在风险（母路由具有访问权限）

  1. 连接速度慢 原因分析
    1. 线缆过长（约50米）导致功率耗损，导致丢包率增加（见附件1. 母路由PING测试分析）
    2. 对方设置了网速限制（7月3日检测查证：无限速设置）
    3. 母路由终端过多（见附件2. 母路由DHCP客户端列表）

结论

  • 网络故障，已解决
  • 因修复需要更改的打印机的配置，已完成
  • 检查时未发现母路由限速我方情况
  • 我方路由器未见被蹭网迹象

Operation 操作

  • 路由器（20-DC-E6-86-A8-AA）WAN口接入外来信号（192.168.1.1）
  • 路由器（20-DC-E6-86-A8-AA）设置重置
  • 设置路由器上网方式为动态IP
  • 设置路由器无线网络账号及密码
  • 修改路由器网关为192.168.2.1
  • 修改DHCP地址池192.168.2.XXX
  • 修改Web面板管理员账号密码
  • 修改打印机打印机配置
  • 修改两台计算机打印机配置

配置的设备信息

无线设置

SSID：J.Berry

Password：yL&896600$$

Web面板设置

用户名：jiubaiyi

密码：Ag06ylW8Gs

SHARP MX-310N打印机 @玖佰易大堂

IP地址：192.168.2.111

——-其余设置未更改——-

（以下为空）

附件1. 母路由PING测试、国内知名网点PING测试

母路由PING测试

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> $ ping 192.168.1.1

PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: icmp_seq=0 ttl=63 time=976.440 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=63 time=2.015 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=63 time=32.594 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=63 time=3.926 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=63 time=1.570 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=63 time=2.668 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=63 time=1.632 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=63 time=1.840 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=63 time=1.974 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=63 time=2.013 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=63 time=7.105 ms
64 bytes from 192.168.1.1: icmp_seq=11 ttl=63 time=3.558 ms
64 bytes from 192.168.1.1: icmp_seq=12 ttl=63 time=817.259 ms
64 bytes from 192.168.1.1: icmp_seq=13 ttl=63 time=543.247 ms
64 bytes from 192.168.1.1: icmp_seq=14 ttl=63 time=273.907 ms
64 bytes from 192.168.1.1: icmp_seq=15 ttl=63 time=254.490 ms
64 bytes from 192.168.1.1: icmp_seq=16 ttl=63 time=2.305 ms
64 bytes from 192.168.1.1: icmp_seq=17 ttl=63 time=2.406 ms
Request timeout for icmp_seq 18
Request timeout for icmp_seq 19
64 bytes from 192.168.1.1: icmp_seq=20 ttl=63 time=1.779 ms
64 bytes from 192.168.1.1: icmp_seq=21 ttl=63 time=1.057 ms
64 bytes from 192.168.1.1: icmp_seq=22 ttl=63 time=641.569 ms
64 bytes from 192.168.1.1: icmp_seq=23 ttl=63 time=2.056 ms
64 bytes from 192.168.1.1: icmp_seq=24 ttl=63 time=2.518 ms
64 bytes from 192.168.1.1: icmp_seq=25 ttl=63 time=1.808 ms
64 bytes from 192.168.1.1: icmp_seq=26 ttl=63 time=1.770 ms
64 bytes from 192.168.1.1: icmp_seq=27 ttl=63 time=3.478 ms
64 bytes from 192.168.1.1: icmp_seq=28 ttl=63 time=4.079 ms
64 bytes from 192.168.1.1: icmp_seq=29 ttl=63 time=1.812 ms
64 bytes from 192.168.1.1: icmp_seq=30 ttl=63 time=27.273 ms
64 bytes from 192.168.1.1: icmp_seq=31 ttl=63 time=1.246 ms
64 bytes from 192.168.1.1: icmp_seq=32 ttl=63 time=6.317 ms
Request timeout for icmp_seq 33
Request timeout for icmp_seq 34
Request timeout for icmp_seq 35
64 bytes from 192.168.1.1: icmp_seq=36 ttl=63 time=261.113 ms
64 bytes from 192.168.1.1: icmp_seq=37 ttl=63 time=4.042 ms
Request timeout for icmp_seq 38
Request timeout for icmp_seq 39
Request timeout for icmp_seq 40
64 bytes from 192.168.1.1: icmp_seq=41 ttl=63 time=418.851 ms
Request timeout for icmp_seq 42
64 bytes from 192.168.1.1: icmp_seq=43 ttl=63 time=707.134 ms
64 bytes from 192.168.1.1: icmp_seq=44 ttl=63 time=440.233 ms
64 bytes from 192.168.1.1: icmp_seq=45 ttl=63 time=172.060 ms
64 bytes from 192.168.1.1: icmp_seq=46 ttl=63 time=633.342 ms
64 bytes from 192.168.1.1: icmp_seq=47 ttl=63 time=4.961 ms
64 bytes from 192.168.1.1: icmp_seq=48 ttl=63 time=2.424 ms
Request timeout for icmp_seq 49
Request timeout for icmp_seq 50
64 bytes from 192.168.1.1: icmp_seq=51 ttl=63 time=4.129 ms
64 bytes from 192.168.1.1: icmp_seq=52 ttl=63 time=3.115 ms
64 bytes from 192.168.1.1: icmp_seq=53 ttl=63 time=2.054 ms
64 bytes from 192.168.1.1: icmp_seq=54 ttl=63 time=2.529 ms
64 bytes from 192.168.1.1: icmp_seq=55 ttl=63 time=2.183 ms
c64 bytes from 192.168.1.1: icmp_seq=56 ttl=63 time=2.473 ms
--- 192.168.1.1 ping statistics ---
57 packets transmitted, 46 packets received, 19.3% packet loss
round-trip min/avg/max/stddev = 1.057/136.703/976.440/254.461 ms

国内知名网点PING测试

qq.com

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> $ ping www.qq.com

PING public-v6.sparta.mig.tencent-cloud.net (14.18.175.154): 56 data bytes
64 bytes from 14.18.175.154: icmp_seq=0 ttl=53 time=9.396 ms
64 bytes from 14.18.175.154: icmp_seq=1 ttl=53 time=9.361 ms
64 bytes from 14.18.175.154: icmp_seq=2 ttl=53 time=11.664 ms
64 bytes from 14.18.175.154: icmp_seq=3 ttl=53 time=12.171 ms
64 bytes from 14.18.175.154: icmp_seq=4 ttl=53 time=58.086 ms
Request timeout for icmp_seq 5
64 bytes from 14.18.175.154: icmp_seq=6 ttl=53 time=41.952 ms
64 bytes from 14.18.175.154: icmp_seq=7 ttl=53 time=18.348 ms
64 bytes from 14.18.175.154: icmp_seq=8 ttl=53 time=18.681 ms
64 bytes from 14.18.175.154: icmp_seq=9 ttl=53 time=7.419 ms
Request timeout for icmp_seq 10
Request timeout for icmp_seq 11
64 bytes from 14.18.175.154: icmp_seq=10 ttl=53 time=2301.654 ms
64 bytes from 14.18.175.154: icmp_seq=11 ttl=53 time=2764.891 ms
64 bytes from 14.18.175.154: icmp_seq=12 ttl=53 time=1761.078 ms
64 bytes from 14.18.175.154: icmp_seq=14 ttl=53 time=19.782 ms
64 bytes from 14.18.175.154: icmp_seq=15 ttl=53 time=13.185 ms
64 bytes from 14.18.175.154: icmp_seq=16 ttl=53 time=8.380 ms
64 bytes from 14.18.175.154: icmp_seq=17 ttl=53 time=13.690 ms
64 bytes from 14.18.175.154: icmp_seq=18 ttl=53 time=12.751 ms
64 bytes from 14.18.175.154: icmp_seq=19 ttl=53 time=20.885 ms

--- public-v6.sparta.mig.tencent-cloud.net ping statistics ---
21 packets transmitted, 18 packets received, 14.3% packet loss
round-trip min/avg/max/stddev = 7.419/394.632/2764.891/857.910 ms

baidu.com

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> $ ping www.baidu.com

PING www.wshifen.com (104.193.88.123): 56 data bytes
Request timeout for icmp_seq 0
64 bytes from 104.193.88.123: icmp_seq=1 ttl=51 time=228.099 ms
64 bytes from 104.193.88.123: icmp_seq=2 ttl=51 time=297.886 ms
64 bytes from 104.193.88.123: icmp_seq=3 ttl=51 time=319.891 ms
64 bytes from 104.193.88.123: icmp_seq=4 ttl=51 time=245.729 ms
64 bytes from 104.193.88.123: icmp_seq=5 ttl=51 time=259.760 ms
Request timeout for icmp_seq 6
Request timeout for icmp_seq 7
64 bytes from 104.193.88.123: icmp_seq=7 ttl=51 time=1223.476 ms
64 bytes from 104.193.88.123: icmp_seq=8 ttl=51 time=752.268 ms
Request timeout for icmp_seq 10
64 bytes from 104.193.88.123: icmp_seq=11 ttl=51 time=180.810 ms
64 bytes from 104.193.88.123: icmp_seq=12 ttl=51 time=197.627 ms
64 bytes from 104.193.88.123: icmp_seq=13 ttl=51 time=325.392 ms
64 bytes from 104.193.88.123: icmp_seq=14 ttl=51 time=189.012 ms
64 bytes from 104.193.88.123: icmp_seq=15 ttl=51 time=365.446 ms
64 bytes from 104.193.88.123: icmp_seq=16 ttl=51 time=182.685 ms
Request timeout for icmp_seq 17

--- www.wshifen.com ping statistics ---
19 packets transmitted, 13 packets received, 31.6% packet loss
round-trip min/avg/max/stddev = 180.810/366.775/1223.476/286.251 ms

主流网站加载时间一览

测试系统：Windows 7

网站 DOM加载时间
中国银行（https://www.boc.cn/） 5.73s
QQ首页（https://www.qq.com/） 16.63s
百度（https://www.baidu.com/） 19.67s
搜狗（https://www.sogou.com/） 1.52s

结论

  • 此地区对百度搜索引擎不友好，建议使用搜狗搜索

  • 网速上限约为3.2MB/s，当我方客户端数为3以上时，访问速度会有明显提升

附件2. 母路由DHCP客户端列表

主机 MAC地址 IP地址 有效时间
TL-WR740N 20-DC-E6-86-A8-AB 192.168.1.110 1:17
Erics-MacBook C4-B3-01-C4-2C-2F 192.168.1.114 0:41
YR2019 00-E0-4C-36-28-D8 192.168.1.104 0:40
匿名主机 F0-0F-EC-97-6C-67 192.168.1.117 1:36
bbk-S3P-aa62a6309d57b… 98-CF-53-0B-18-53 192.168.1.103 1:19
MI6X-xiaomishouji D8-CE-3A-9C-D2-56 192.168.1.100 0:58
iPhone 98-10-E8-77-93-94 192.168.1.109 0:38
HUAWEI_MAIMA… B0-E5-ED-CB-63-B5 192.168.1.115 0:17
HUAWEI_P20-85048… AC-92-32-4F-C0-EB 192.168.1.101 0:17
nova_5_Pro-ff6df1ce78a… D8-9E-61-62-DD-E8 192.168.1.107 0:11
OPPO-Reno2 5C-66-6C-66-BC-97 192.168.1.113 0:04
OPPO-A7x D4-67-D3-8E-8E-13 192.168.1.108 0:02

Note: 仅代表检测时结论

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