Sunday , March 25 2018

Huawei AR19/29/49 router DHCP configuration

Let’s assume that we have a topology like in the picture:

  1. IP addresses of ETH 0/1 and ETH 0/2 on Router A are and respectively.
  2. Router B (dhcp client) obtains static IP address, gateway address and DNS server address from DHCP server (router A). A MAC address of interface ETH 0/0 of router B is 0800-6902-01FC.
  3. DHCP server assigns IP addresses to clients in subnet subnetted to and
  4. DNS server address and WINS server address are and respectively.
  5. For subnet configure DNS server address, WINS server address, gateway address and address lease duration for 6 days and 6 hours.
  6. For subnet configure DNS server address, gateway address and address lease duration for 10 days.

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a few basic but useful maintenance commands

To make it easy to maintain Huawei’s device it is recommended to configure proper time. You can do it manually or configure NTP protocol to force the device to use reference time from external servers. I will also show you how to configure header for login information and how to execute the specified batch file.

Setting of time zone:
clock timezone time-zone-name { add | minus } offset

Let’s take Poland time zone as an example.

<NE40E>clock timezone labnario add 1
 Setting of daylight-saving-time:
clock daylight-saving-time time-zone-name repeating start-time { { { first | second | third | fourth | last } weekday month } | start-date } end-time { { { first | second | third | fourth | last } weekday month } | end-date } offset

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too small flash to upload a new software

In my previous post I wrote about upgrade of Huawei S5300 switch. The question is, what to do if flash memory is too small to fit more than one software. As it was mentioned last time, you can format flash from bootrom menu and download a new software using FTP, from bootrom menu. In this post I will show you how to deal with this problem more smoothly. You can come up against this problem in Huawei S3328TP-SI switch, where flash capacity is 15MB. Let’s take it as an example.

<S3328>display version
Huawei Versatile Routing Platform Software
VRP (R) Software, Version 5.30 (S3328 V100R003C00SPC301)
Copyright (C) 2008-2009 Huawei Technologies Co., Ltd.
Quidway S3328TP-SI uptime is 0 day, 0 hour, 4 minutes

As you can see flash capacity is 15MB:

Directory of flash:/

   0   -rw-        61  Jan 01 2008 00:22:13   private-data.txt
   1   -rw-       660  Jan 01 2008 00:16:23
   2   -rw-       396  Jan 01 2008 00:12:06   hostkey
   3   -rw-   7068108  Jan 01 2008 00:20:12
   4   -rw-       540  Jan 01 2008 00:12:11   serverkey
   5   -rw-    343712  Jan 01 2008 00:04:49   bootrom330.bin
   6  -rw-        60  Jan 01 2008 00:00:53   $_patchstate_a
   7  -rw-         4  Jan 01 2008 00:01:37   notilogindex.txt

14632 KB total (6268 KB free)

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upgrade of Huawei S5300 switch

Any time you want to upgrade huawei’s device you have 2 methods to do this. The first of them is to use CLI (command line interface), the second is to use bootrom menu. Using CLI is the most popular method. You can configure FTP server on the device and use your PC as FTP client or install FTP server on your PC and treat the device as FTP client. Anyway, you can use TFTP or serial (slow connection) instead of FTP. Sometimes it is not possible to get CLI because there is a problem with software file. It is damaged or does not exist. In this case we can use bootrom menu to download a new software and upgrade the device. Let’s take S5300 as an example.

Upgrade of Huawei S5300 switch from CLI
Huawei S5300 as FTP server:
FTP server enable
local-user labnario password simple labnario
local-user labnario privilege level 15
local-user labnario ftp-directory flash:
local-user labnario service-type ftp
interface MEth0/0/1
 ip address

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Huawei S3300 switch – access methods

How to log into Huawei S3300 switch? It is very simple. Which method you will chose depends on what you want to do on this device. If you want to upload file to or download it from the switch, use FTP or SFTP. If you want to configure the switch, use telnet, SSH or HTTP methods. Each time you can access the switch using console port,  locally or remotely, in case a console server is configured.

telnet S3300
telnet server enable
local-user labnario password cipher &EU15O"Q3/;Q=^Q`MAF4
local-user labnario privilege level 15
local-user labnario service-type telnet
user-interface vty 0 4
 authentication-mode aaa
 protocol inbound all

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