IT Answers » Subnets http://itknowledgeexchange.techtarget.com/itanswers Sat, 25 May 2013 02:14:35 +0000 en-US hourly 1 How to connect two subnets and two isp’s with Cisco RV042G http://itknowledgeexchange.techtarget.com/itanswers/how-to-connect-two-subnets-and-two-isps-with-cisco-rv042g/ http://itknowledgeexchange.techtarget.com/itanswers/how-to-connect-two-subnets-and-two-isps-with-cisco-rv042g/#comments Tue, 15 Jan 2013 19:44:13 +0000 heijligers http://itknowledgeexchange.techtarget.com/itanswers/how-to-connect-two-subnets-and-two-isps-with-cisco-rv042g/ http://itknowledgeexchange.techtarget.com/itanswers/how-to-connect-two-subnets-and-two-isps-with-cisco-rv042g/feed/ 2 Accessing a Server on a different subnet http://itknowledgeexchange.techtarget.com/itanswers/accessing-a-server-on-a-different-subnet/ http://itknowledgeexchange.techtarget.com/itanswers/accessing-a-server-on-a-different-subnet/#comments Mon, 14 Nov 2011 18:14:47 +0000 Admccurdy I have a t1 line that goes into a switch, off the switch there are two routers one operating on the subnet 192.168.1.1 and the other on 192.168.0.1. Both routers have individual static ip addresses. I have a ReadyNAS storage device on 192.168.1.100. I want to be able to access the server from both subnets. The server has two ethernet ports but the second router is in another building and I don’t want to have to run a second line to it. Any suggestions?

]]> http://itknowledgeexchange.techtarget.com/itanswers/accessing-a-server-on-a-different-subnet/feed/ 1 Cisco 3750 – EIGRP not on common subnet problen http://itknowledgeexchange.techtarget.com/itanswers/cisco-3750-eigrp-not-on-common-subnet-problen/ http://itknowledgeexchange.techtarget.com/itanswers/cisco-3750-eigrp-not-on-common-subnet-problen/#comments Tue, 24 May 2011 14:43:56 +0000 Jlymn I’m getting lots of messages on a router IGRP-IPv4:(50)(Default-IP-Routing-Table:50): Neighbor 10.13.1.251 not on common subnet for Vlan11

i tried to ping but 10.13.1.251 doesnt respond

show ip route shows 10.13.1.251 is directly connected on Vlan1. This must be off one of the trunk ports but how can i find out which port this neighbor connects on so i can fix the problem?

vlan 11 is 10.20.1.0 255.255.255.0.

Vlan 1 is 10.13.1.0 255.255.255.0.

So something is misconfigured with wrong ip address, but i can’t see what it is or where it connects to be able to fix. If i could find MAC address of device i could trace to a port and console on – any ideas?

 

 Thanks

]]> http://itknowledgeexchange.techtarget.com/itanswers/cisco-3750-eigrp-not-on-common-subnet-problen/feed/ 2 Subnetting processes http://itknowledgeexchange.techtarget.com/itanswers/sbnetting/ http://itknowledgeexchange.techtarget.com/itanswers/sbnetting/#comments Thu, 24 Mar 2011 06:24:02 +0000 yans112112 Hi,guys one basic question.I am feeling so shy to ask this question.Can you please tell the procedure of whole sub-netting process.I know but i forgotten.with 2/3 examples.please dont mind.

]]> http://itknowledgeexchange.techtarget.com/itanswers/sbnetting/feed/ 2 Two domains, two dhcp servers (help with subnet) http://itknowledgeexchange.techtarget.com/itanswers/two-domains-two-dhcp-servers-help-with-subnet/ http://itknowledgeexchange.techtarget.com/itanswers/two-domains-two-dhcp-servers-help-with-subnet/#comments Sat, 19 Mar 2011 16:58:09 +0000 Encrypt1 Hi all,

I am having some trouble and I can’t get forward…
I have two different domains running, both are in the same network. (Scenario is that DC1 is the primary domain of an existing company and DC2 is a new domain for a new company)
The DC1 of Domain1 has the ip 10.128.101.3 and the DC2 of Domain2 has the ip 10.128.102.3
Right now both have the subnet 255.0.0.0

Everything is working fine and I they are able to communicate (DNS) also working.
What I need is to have two DHCP servers. One on DC1 and one on DC2.
DC1 DHCP is giving IPs for company one’s clients – 10.128.101.20-10.128.101.150
DC2 should have two scopes – the first is for 10.128.101.150-254 and should be considered as a backup if DC1 is gone.
The second scope on DC2 should give ip’s to the clients of domain two – 10.128.102.20-10.128.102.254

DHCP won’t let me set the two scopes on DC2 as the same subnet – 255.0.0.0 and I don’t see any possibility to do what I want without routing.
So I need to know what subnet to set and how can I configure WIN SRV 2003 as a router on one of the systems so that they will be able to communicate.

I hope you understand me…

Thanks for the help.

]]> http://itknowledgeexchange.techtarget.com/itanswers/two-domains-two-dhcp-servers-help-with-subnet/feed/ 2 Subnet Mask http://itknowledgeexchange.techtarget.com/itanswers/subnet-mask-3/ http://itknowledgeexchange.techtarget.com/itanswers/subnet-mask-3/#comments Thu, 17 Mar 2011 23:34:16 +0000 Riffmaker247 [strong]I would like to know how to convert the subnet mask into allowable subnets and hosts. For example, I have a class C subnet mask of 255.255.255.224. How do I know that this allows 6 subnets and 30 hosts? My text book is not very clear on this. [/strong]

]]> http://itknowledgeexchange.techtarget.com/itanswers/subnet-mask-3/feed/ 1 IP Authenticate http://itknowledgeexchange.techtarget.com/itanswers/ip-authenticate/ http://itknowledgeexchange.techtarget.com/itanswers/ip-authenticate/#comments Fri, 31 Dec 2010 06:00:50 +0000 Sandipank how I can allow in my network under the firewalla single ip where other external net IPs can enter?

]]> http://itknowledgeexchange.techtarget.com/itanswers/ip-authenticate/feed/ 2 Network monitoring tool to alert when the network is too saturated? http://itknowledgeexchange.techtarget.com/itanswers/network-monitoring-tool-to-alert-when-the-network-is-too-saturated/ http://itknowledgeexchange.techtarget.com/itanswers/network-monitoring-tool-to-alert-when-the-network-is-too-saturated/#comments Fri, 13 Aug 2010 13:54:50 +0000 ITKE Is there a network monitoring tool to alert me to when my network becomes too saturated and recommend what to do like spit more subnets or set up vlans? How can I view collisions and the such?

]]> http://itknowledgeexchange.techtarget.com/itanswers/network-monitoring-tool-to-alert-when-the-network-is-too-saturated/feed/ 1 COMMUNICATION OF CLIENTS WITH SERVER IN DEFERENT SITE WINDOWS SERVER 2008 http://itknowledgeexchange.techtarget.com/itanswers/communication-of-clients-with-server-in-deferent-site-windows-server-2008/ http://itknowledgeexchange.techtarget.com/itanswers/communication-of-clients-with-server-in-deferent-site-windows-server-2008/#comments Fri, 30 Apr 2010 08:11:42 +0000 Uvullas we are running four domain controllers all are windows server 2008 enterprise. we have a considerably big network with almost 20 vlans (eg 192.168.10.0,192.168.11.0,…192.168.49.0)we have made four different sites and have added subnets and servers to the sites according to their nearest availability. but the problem we are facing is that when our clients are trying to get communication with the domain controller, the reply is not coming from the server which is in the same site. all the time it is querying for differnt domain controllers which are in another site. as our servers are located at long distances connected through leased lines it is important for us to get all the clients in one location(site) must be communicating with the server in the same location if the server is available online. how can we achive this????? please help thanks

]]> http://itknowledgeexchange.techtarget.com/itanswers/communication-of-clients-with-server-in-deferent-site-windows-server-2008/feed/ 1 subneting http://itknowledgeexchange.techtarget.com/itanswers/subneting/ http://itknowledgeexchange.techtarget.com/itanswers/subneting/#comments Mon, 29 Mar 2010 07:16:18 +0000 Gooodle http://itknowledgeexchange.techtarget.com/itanswers/subneting/feed/ 1