Question about 3Com SuperStack 3 4400 (3C17204-US) 48x10/100 Mbps Networking Switch

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Dynamic Vlans sir i have in problem about Dynamic Vlans Configuration in 3com superstack 4 switches. i have been configured IAS server, Active directory, dhcp and winxp client but i m not able to connect LAN. kindly help me about Dynamic Vlans configuration and provide me authentic document.. i m very thankful to u.. REGARDS, SYED BAQAR RAZA

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Posted on Jan 02, 2017

alex8642
  • 21 Answers

SOURCE: frequent wireless disconnections 802.1X WPA TKIP

try using predefined IP addresses. Let each pc make it's own IP address and see if the conflicts continue, if they do, post again. :)

Posted on Feb 11, 2007

fossilruins
  • 114 Answers

SOURCE: enter the switch configuration

page 22 of the 3com user guide for your switch talks about how to use the console cable and how to connect to your pc, I included the link below for your manual, if you don't have it:

http://support.3com.com/infodeli/tools/switches/baseline/3Com_Baseline-Switch-2916-2924_User-Guide.pdf

Posted on Jun 21, 2008

  • 1 Answer

SOURCE: Routing vlans on 3com switch 4500

i can't set ip address over 4 vlans. the 3com switch 4500 always give error message "there's not enough routing resources available".please help....

Posted on Jun 08, 2010

  • 17 Answers

SOURCE: I want to know the

Username:monitor Password: monitor---monitor mode, view only manager manager--can change all except security features admin (no password)--sets security features IP: 169.254.100.100 or 169.254.100.99

Posted on Jul 18, 2011

  • 9 Answers

SOURCE: 3com superstack 3 switch 3300 reset himself randomaly need a solution

take it to the 4s garage, if you want to find out the problem by yourself,you first have some professional tool , there are some diagnostic that always can figure out the problem i can show you: www.xcardiag.com/

Posted on Apr 12, 2012

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Can not connect my laptop. wireless signal on laptop says limited access and cannot find ip address


Check these :
- Check that your ip adresse is not configured as a static, if it is switch it to dynamic.
- Check that the network you are trying to connect to has a DHCP server.
- If a DHCP server exists then check it's configuration, Gateway and DNS. if you can'nt do it talk to the administrator so that he can check that.
- Check that the access point is not configured with MAC adress restriction.
- Check that the gateway is active and you have all permissions to get over internet.

Nov 27, 2010 | Computers & Internet

Tip

DHCP Server configuration in Linux


Linux is a UNIX based operating system. It is a server operating system. REDHAT Linux is Enterprise version of Linux. Now a day's Most of corporate sectors use red hat Linux as server in their company because it is secure very much.

Full form of DHCP "Dynamic Host Configuration Protocol. DHCP server assigns IP addresses and other network configuration information like subnet mask, broadcast address, etc to computers on a network. The DHCP assignments are the following.

Lease Request: Client broadcasts their request to DHCP server with a source address of 0.0.0.0 and a destination address of 255.255.255.255.
IP lease offer: DHCP server replies with an IP address, subnet mask, network gateway, name of the domain, name servers, duration of the lease and the IP address of the DHCP server.

Lease Selection: Client receives offer and broadcasts to al DHCP servers that will accept given offer so that other DHCP server need not make an offer.

The DHCP server then sends an ack to the client. The client is configured to use TCP/IP. Lease Renewal: When half of the lease time has expired, the client will issue a new request to the DHCP server.

Installation of DHCP server: First of all while install the RedHat Linux enterprise version server be careful about the ports and the services must be turned on. To create DHCP server in Linux first download DHCP RPM package and install with "rpm-ivh" command. Where I have done it there I have create YUM server, so easily I have download and install it by YUM (yum install dhcp version). DHCP package will locate in /usr/share/doc/at Linux file system. I copied the DHCP's files from /usr/share/doc/ to /etc/dhcpd.conf.. Then I started to configure the dhcpd.conf file to route the DHCP server in there local network. I have open the configuration file with "vi" command. Then commented out the lines from "default gateway to option netbios" because system don't read the commented lines. After that I set the range of IP address in dynamic- bootp of their local assumption of system. I have change the "next-server" with the dhcp server name and have also change the fixed address with the dhcp server IP address (end range of dynamic IP). It is very easy job to configure DHCP server. After configure the .conf file of dhcp just turn on the service with "chkconfig" command and restart the dhcp service. After that entire job I reboot the system. And after rebooting of server I turned on the other client system. While startup the client system without static IP address all of those picked up IP from dhcp server and going on successfully. I have prefer the command line mode to do the total job.
The DHCP server configure file is following:

ddns-update-style interim
ignore client-updates

subnet 192.168.1.0 netmask 255.255.255.0 {
# The range of IP addresses the server
# will issue to DHCP enabled PC clients
# booting up on the network

range 192.168.1.201 192.168.1.220;
# Set the amount of time in seconds that
# a client may keep the IP address

default-lease-time 86400;
max-lease-time 86400;

# Set the default gateway to be used by
# the PC clients

option routers 192.168.1.1;
# Don't forward DHCP requests from this
# NIC interface to any other NIC
# interfaces

option ip-forwarding off;

# Set the broadcast address and subnet mask
# to be used by the DHCP clients

option broadcast-address 192.168.1.255;
option subnet-mask 255.255.255.0;

# Set the NTP server to be used by the
# DHCP clients

option ntp-servers 192.168.1.100;

# Set the DNS server to be used by the
# DHCP clients

option domain-name-servers 192.168.1.100;

# If you specify a WINS server for your Windows clients,
# you need to include the following option in the dhcpd.conf file:

option netbios-name-servers 192.168.1.100;

# You can also assign specific IP addresses based on the clients'
# ethernet MAC address as follows (Host's name is "laser-printer":

host laser-printer {
hardware ethernet 08:00:2b:4c:59:23;
fixed-address 192.168.1.222;
}
}
#
# List an unused interface here
#
subnet 192.168.2.0 netmask 255.255.255.0 {
}

on Mar 17, 2011 | Computers & Internet

1 Answer

Sir I have 4200 series 26 ports Switch i want to Configure intra VLAN But I am Getting a problem to Configure that switch . After Cnfigure VLAN on Consol prompt. I am not accessing to my Server & WAN...


Hi,
If you are creating only Layer 2 VLANs on the switch , you wont be able to ping the servers and Routers as they are in default VLAN1.
you can do the below steps
1. Create sub interfaces on the router LAN interface
2. Provide a new ip range to the new sub interface
3. Make the switch port connecting router as trunk, so that it will carry both the VLAN info
4. on your Labtop/PC give the IP address in the newly defined range
5. Make your switch port to be in the new VLAN

This will work , if you wont be able to configure the above settings, let me know i will give you the detailed config

Nov 01, 2010 | 3Com 4500 24-Port Ethernet Switch

2 Answers

I have win2003 i want it serover what can i do


Hello,

You can do a lot with this operating system.

Some of his features are: DOMAIN Controller, Active Directory, Ftp Server, DHCP, Web Server, Terminal Server, File server etc.
Here i have some very useful links.

About Windows 2003 Server Editions: http://en.wikipedia.org/wiki/Windows_Server_2003
Futures: http://www.microsoft.com/WindowsServer2003/evaluation/features/default.mspx

Configuring DNS Server: http://www.petri.co.il/install_and_configure_windows_2003_dns_server.htm

Configuring DHCP Server: http://www.windowsreference.com/windows-server-2003/install-and-configure-dhcp-server-in-win-server-2003-step-by-step-guide/

Configuring File Server: http://www.windowsnetworking.com/articles_tutorials/File_Server_Windows_2003.html

Configure Printing Server: http://www.brightrev.com/how-to/enterprise/55-best-practices-for-setting-up-a-windows-print-server.html

Configure FTP Server: http://support.microsoft.com/kb/323384

Configure Active Directory: http://helpdeskgeek.com/how-to/windows-2003-active-directory-setupdcpromo/

Configure Web Server: http://support.microsoft.com/kb/324742

All these are only some of his features.

I hope is useful to you and your friends

Mar 13, 2010 | Microsoft Windows Server 2003 Enterprise...

1 Answer

3 vlans, data,1; data 2,;voip,5. Ports carry voice tagged, and data. currently Windows 2000 DHCP server lives on Vlan 1 (AND WORKS). Need to upgrade. When we test the new servers we are unable to make both...


Here's what you need to do:

First, be sure to assign an ip address(in the proper subnet) to each VLAN.

Second, use the ip helper-address command in the context of each VLAN, the address used should be the address of the DHCP server

Third, Add a scope for each additional VLAN on the DHCP server.

The switch will route the DHCP request to the proper server based on the ip helper-address command parameter and based on the ip address of the VLAN that is passed tot he server, a DHCP address in the proper subnet is automatically configured.

Here is a sample:

ProCurve Switch 3500yl-24G-PWR# configure
ProCurve Switch 3500yl-24G-PWR(config)# vlan 33
ProCurve Switch 3500yl-24G-PWR (vlan-33)#ip address 192.168.33.254/24
ProCurve Switch 3500yl-24G-PWR (vlan-33)# ip helper-address 10.1.2.250

Aug 06, 2009 | HP ProCurve 4104gl Networking Switch

1 Answer

DHCP installation problem


First of all, read this M$ article on setting up DHCP: http://support.microsoft.com/kb/139904

Secondly, check the following:
1. You have defined a valid scope and ACTIVATED it
2. You have AUTHORISED the DCHP server in Active Directory (see http://technet.microsoft.com/en-us/library/cc759688(WS.10).aspx)
3. Make sure that there are enough unused IPs in the address pool
Make sure that the DHCP server service is running - and check the EVENT LOG for errors
4. Make sure that there is no other, especially unauthorized, DHCP servers (i.e. router with DHCP enabled)

Actually the best article overall to review is http://technet.microsoft.com/en-us/library/cc781697(WS.10).aspx, which gives a big picture view regarding the role of DHCP autorization and what can happen in a mixed environment

May 21, 2009 | Microsoft Windows Server 2003 Enterprise...

2 Answers

IP Addressing by dhcp for vlans


tell each vlan about DHCP server using

ip helper <DHCP servers ip adddress>.

in config mode.

Mar 03, 2009 | Cisco Catalyst 2950 24x10/100 Mbps...

1 Answer

Frequent wireless disconnections 802.1X WPA TKIP


try using predefined IP addresses. Let each pc make it's own IP address and see if the conflicts continue, if they do, post again. :)

Jan 25, 2007 | 3Com Wireless LAN Access Point 7250...

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Random reboot of 3com 4400 stack Can you help, please? I have a 3Com 4400 stack running the latest version v6.13S. The stack sometimes reboots randomly. The logs showed the following: Unit 1 Watchdog handler is RESET The History Log Id No S/W Rel Reason UpTime SysErr 42 42 6.13s S/W Watchdog (r) 17 Hrs 42 Mins 52 Secs Uptime Hours 16828 Reset 41 43 43 6.13s S/W Watchdog (r) 0 Hrs 51 Mins 14 Secs Uptime Hours 16828 Reset 42 44 44 6.13s S/W Watchdog (r) 0 Hrs 47 Mins 54 Secs Uptime Hours 16828 Reset 43 45 45 6.13s S/W Watchdog (r) 0 Hrs 32 Mins 15 Secs Uptime Hours 16828 Reset 44 46 46 6.13s S/W Watchdog (r) 0 Hrs 18 Mins 48 Secs Uptime Hours 16828 Reset 45 47 47 6.13s S/W Watchdog (r) 0 Hrs 33 Mins 59 Secs Uptime Hours 16828 Reset 46 48 48 6.13s S/W Watchdog (r) 1 Hrs 9 Mins 57 Secs Uptime Hours 16829 Reset 47 49 49 6.13s S/W Watchdog (r) 0 Hrs 59 Mins 28 Secs Uptime Hours 16829 Reset 48 50 50 6.13s S/W Watchdog (r) 0 Hrs 42 Mins 37 Secs Uptime Hours 16829 Reset 49 51 51 6.13s S/W Watchdog (r) 20 Hrs 17 Mins 57 Secs Uptime Hours 16849 Reset 50 52 52 6.13s S/W Watchdog (r) 0 Hrs 5 Mins 19 Secs Uptime Hours 16849 Reset 51 53 53 6.13s S/W Watchdog (r) 0 Hrs 55 Mins 15 Secs Uptime Hours 16849 Reset 52 54 54 6.13s S/W Watchdog (r) 0 Hrs 37 Mins 23 Secs Uptime Hours 16849 Reset 53 55 55 6.13s S/W Watchdog (r) 1 Hrs 26 Mins 17 Secs Uptime Hours 16850 Reset 54 56 56 6.13s S/W Watchdog (r) 1 Hrs 42 Mins 12 Secs Uptime Hours 16851 Reset 55 57 57 6.13s S/W Watchdog (r) 17 Hrs 26 Mins 34 Secs Uptime Hours 16868 Reset 56 Assertions : Id S/W Rel File Name Line 5 3.00 agg_sma.c 1215 6 3.00 agg_sma.c 1215 7 3.00 agg_sma.c 1215 8 3.00 agg_sma.c 1215 9 3.00 agg_sma.c 1215 10 3.00 agg_sma.c 1215 14 3.00 agg_sma.c 1215 Last System Error Data: ID (57) S/W Rel (6.13s) Reason (S/W Watchdog) Unit 2 Watchdog handler is RESET The History Log Id No S/W Rel Reason UpTime SysErr 236 236 6.13s S/W Watchdog (r) 0 Hrs 10 Mins 55 Secs Uptime Hours 48145 Reset 235 237 237 6.13s S/W Watchdog (r) 2 Hrs 2 Mins 20 Secs Uptime Hours 48147 Reset 236 238 238 6.13s S/W Watchdog (r) 0 Hrs 29 Mins 15 Secs Uptime Hours 48147 Reset 237 239 239 6.13s Power (r) 2 Hrs 0 Mins 0 Secs Uptime Hours 48149 Reset 238 240 240 6.13s S/W Watchdog (r) 17 Hrs 5 Mins 9 Secs Uptime Hours 48166 Reset 239 241 241 6.13s S/W Watchdog (r) 2 Hrs 55 Mins 1 Secs Uptime Hours 48168 Reset 240 242 242 6.13s Power (r) 3 Hrs 0 Mins 0 Secs Uptime Hours 48171 Reset 241 243 243 6.13s S/W Watchdog (r) 91 Hrs 47 Mins 28 Secs Uptime Hours 48262 Reset 242 244 244 6.13s S/W Watchdog (r) 45 Hrs 25 Mins 25 Secs Uptime Hours 48307 Reset 243 245 245 6.13s S/W Watchdog (r) 4 Hrs 29 Mins 38 Secs Uptime Hours 48311 Reset 244 246 246 6.13s S/W Watchdog (r) 117 Hrs 3 Mins 10 Secs Uptime Hours 48428 Reset 245 247 247 6.13s S/W Watchdog (r) 0 Hrs 32 Mins 9 Secs Uptime Hours 48428 Reset 246 248 248 6.13s S/W Watchdog (r) 3 Hrs 11 Mins 54 Secs Uptime Hours 48431 Reset 247 249 249 6.13s S/W Watchdog (r) 20 Hrs 52 Mins 50 Secs Uptime Hours 48451 Reset 248 250 250 6.13s S/W Watchdog (r) 3 Hrs 5 Mins 37 Secs Uptime Hours 48454 Reset 249 251 251 6.13s S/W Watchdog (r) 1 Hrs 42 Mins 13 Secs Uptime Hours 48455 Reset 250 Assertions : Id S/W Rel File Name Line 129 6.10s lazy_ack.c 890 137 6.10s poller.cc 1104 138 6.10s poller.cc 1104 152 6.10s lazy_ack.c 890 158 6.10s lazy_ack.c 890 159 6.10s lazy_ack.c 890 169 6.10s lazy_ack.c 890 170 6.10s lazy_ack.c 890 173 6.10s lazy_ack.c 890 175 6.10s lazy_ack.c 890 187 6.10s lazy_ack.c 890 191 6.10s lazy_ack.c 890 199 6.10s lazy_ack.c 890 208 6.13s lazy_ack.c 890 209 6.13s lazy_ack.c 890 225 6.13s lazy_ack.c 890 Last System Error Data: ID (251) S/W Rel (6.13s) Reason (S/W Watchdog)

May 14, 2009 | 3Com SuperStack 3 4400 (3C17204-US)...

3Com SuperStack 3 4400 (3C17204-US) 48x10/100 Mbps Networking Switch Logo

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