2
votes
2answers
288 views

Can a Windows DHCP server serve a scope that it is not a part of?

The situation I have a windows SBS 2008 box running as DC/DNS/DHCP/Exchange/File Server to a network on 192.168.1.0/24. Suffice it to say that the IP of the SBS box is immutable. At some point in the ...
0
votes
1answer
46 views

DHCP wont release allocated IPs [closed]

I have a TP-Link td28151 router and I am using DHCP. I need to connect 40 devices to my router by Ethernet. I have set the count of my clients to 100, and my subnet mask is 255.255.255.0. I have ...
1
vote
1answer
187 views

Cross-VLAN sharing and auto-discovery of selective resources

I have a network with several VLANs that each contain resources or clients with different access rights. For simplicity, let's say I have 3 VLANs: ID 10: Contains privileged clients and private ...
0
votes
0answers
67 views

Issue with routing across two networks with DHCP and NAS involved

I have a Linux network set up with three sub networks 192.168.1.0 (chaos), 192.168.3.0 (chaos-hs), and 192.168.5.0 (ute-netz) with three machines casimir, ute, raspberry, a nas server nas and a router ...
1
vote
1answer
51 views

Lost as to what I'm not doing in setting up a home lan network [closed]

I'm a PC repair tech and this is a problem I've recently been trying to troubleshoot for a customer. Upstairs they have the main router which servers as the gateway and router, both hardwired and ...
1
vote
2answers
627 views

Using a Cisco ASA 5505 to forward PXE (WDS) Requests

I have a Cisco ASA 5505 that uses around 5 NICS for different networks. Currently I'm using my ASA to route traffic as it's the only Cisco device I have capable of the small amount of routing ...
11
votes
3answers
764 views

Use Windows DHCP/DHCPv6 server without setting a static address

You cannot set the Windows DHCP/DHCPv6 server to listen on dynamic addresses or all addresses, only static addresses. Is there a technical reason for this limitation? Is there any workaround? My ...
0
votes
1answer
112 views

Assigning reserved DHCP addresses from multiple subnets/scopes to VMs on a single ESXi host

I assume this is possible by connecting one of the NICs to a VLAN from each subnet, or perhaps the helper IP takes care of this organically, but my question is, with one single ESXi host, and 3 VMs on ...
0
votes
1answer
473 views

MikroTik RouterOS 5.18 Does not connect to internet after restart

I am setting up a RouterOS on an x86 machine. The router is configure and is connected to internet via PPPoE internet connection. I am distributing it to 5 PCs and a Router via RouterOS PC. The setup ...
-1
votes
1answer
39 views

Possible to supply two different configurations on the same physical network, so that they are selectable as 2 alternatives in NetworkManager? [closed]

Is it possible to supply two different network configurations (say, by two DHCP servers), so that they are selectable as 2 alternative wired connections in NetworkManager (GNU/Linux)? The motivation ...
-1
votes
2answers
77 views

How to create a Testing and QA network

I am looking to create two new networks inside my private network. The two networks are QA and Dev. I would like to have the QA and Dev network separated (I am thinking different subdomains) that are ...
1
vote
1answer
134 views

Using Public Static IPs and Private DHCP IPs on the Same Router

I have a subnet of public IP addresses that my ISP has provided me with. They are routed through my router (how profound) that has a static IP. I have successfully assigned the IPs from that subnet to ...
1
vote
0answers
735 views

vmware DNS in host-only configuration

I want to connect a Linux VM running in VMWare on a Windows 7 laptop to an enterprise network using host-only configuration. I was able to setup bidirectional routing between "host-only" VMWare ...
-3
votes
1answer
231 views

Can I configure my Negear WGR614v7 to treat DCHP traffic like a hub? [closed]

I have a Negear WGR614v7 wireless router (Hardware Version V7, Firmware Version V2.0.30_2.0.30NA.) I've configured a Windows Server box to act as a DHCP server (among other things.) My DHCP server is ...
3
votes
2answers
700 views

Basic networking: Centos Server Router + Ubuntu Client setup.. unable to access outside world from client

I am trying to set up my Centos Server with two NICs as a router. eth0 is connected to the outside world and eth1 is connected to an Ubuntu client. Here's eth0 on the server: DEVICE=eth0 ...
23
votes
2answers
63k views

Can I have multiple DHCP servers on one network?

This is a Canonical Question about Redundant DHCP Servers. Is it possible to have more than one DHCP server on the same LAN? What are the implications of doing this? What happens if there is ...
2
votes
2answers
4k views

Routing between subnets with one router?

I have a Draytek Vigor 2820 which is connected to three gigabit Netgear Layer 2 switches. Currently the network is fairly simple, 192.168.1.0/24. One the network I have 7 servers, around 50 ...
10
votes
3answers
699 views

No internet after dhcp lease renews

Today we had a number of machines stop getting internet access. After a lot of troubleshooting, the common thread is that they all had their dhcp lease renewed today (we're on 8 day leases here). ...
1
vote
2answers
4k views

Configure Mac OS X Server as Router?

I'm trying to configure a Mac OS X box with two NICs as a router complete with DHCP and NAT which in theory shouldn't be too much of a challenge but at the moment I'm learning theory and reality are ...
0
votes
1answer
207 views

Debian Stable - Routing problem

ADSL Router: Cisco 877 (172.16.0.254) PC1 (172.16.0.10) to port1 of router PC2 (172.16.0.20) to port2 of router Server, 2 NICs, eth0 to port0 of router. (172.16.0.240) Everything is OK with the ...
2
votes
1answer
208 views

Building a custom Router

I need to create the network below: Facts: The router is a Linux box (don't care about the flavor), it has 2 NIC's. The switch is unable to support VLAN's. The servers need a WAN-IP. NAT is not ...
0
votes
3answers
194 views

Is NAT the same as a Routing with DHCP in the virtual VMnet 8 (NAT) in VMWare?

Is NAT the same as a Routing with DHCP in the virtual VMnet 8 (NAT) in VMWare? Or how does the routing take place in these virtual environments?
3
votes
4answers
1k views

Determine switches between devices on LAN

I'm on a network where most devices are DHCP. If I have a few switches between device A and a DHCP server, how can I find out what they are? traceroute just gives me 1 hop, regardless of the number ...
1
vote
2answers
257 views

Microsoft Networking - WINS, DHCP, considerations for moving from a flat to routed network

We are moving our network from a flat 192.168.x.x/16 to a routed network to be composed of several /24 subnets and a layer 3 switch. It is a Windows network, active directory integrated, standard ...
0
votes
1answer
368 views

Routing DHCP through a wireless router

I have a SBS 2003 server that is running DNS/AD/DHCP. Address space is 192.168.1.1. We added a new wireless router to the network to replace a old damaged Watchguard Firewall/gateway. Everything ...
1
vote
2answers
269 views

Linux DHCP 2 networks

I have 2 networks (192.168.1.0/24 & 192.168.2.0/24), and 1 DHCP server. I need to serve DHCP for 2 networks, but it doesn't work. Second network (192.168.2.0/24) ...
1
vote
2answers
1k views

Two NICs and IP routing on CentOS

I'm trying to setup a private network but I want one of the machines to connect to both this private network and another outside network via two NICs. I would like eth0 to be used for every IP ...
1
vote
1answer
403 views

Ubuntu server - Problem of routing

I have setup a Ubuntu server with Ubuntu Enterprise Cloud. The server is connected to a private LAN with DHCP and Internet access (via a gateway). At first, the server was working fine. It can ping ...
3
votes
2answers
2k views

Two DHCP servers on the same network

We are setting up a routing link between the Windows Server 2008 networks of two different buildings in my organisation. Each network uses a different IP addressing scheme (one uses public addresses, ...
1
vote
4answers
528 views

Dedicated T1 for server and Cable/DSL for LAN

I am going to be setting up Windows Server 2008 for a small business (15-20 users). I will be getting a dedicated T1 for the server, being that it will be hosting email through exchange server. Being ...
0
votes
2answers
443 views

Windows 2003 routing/firewall/dhcp/… problem?

I have a problem with the availability of server from the outside (from local network all works perfect). A key problem is the http, where the requests are carried out but only if the response is less ...