Windows 2003 dhcp for multiple subnets




















Will the router automatically handle this? If they're all part of the same domain I'm sure you can have reverse dns lookups setup, so that dns knows where to look. With the correct routing in place this should work, we have multiple subnets across multiple locations which work in this manner Separate dhcp servers on separate subnets but all in the same domain Although for this to work I have a feeling that dhcp has to be linked to active directory..

I hope that makes sense? There are multiple ways to make one host ping another from different subnets.. A couple of easy ones You could user are. Setup static routes between subnets or site-to-site vpn with firewall rules in place we use the latter on one of our sites. Each bit that's set is noted by a "1" showing that the bit is "on" or "enabled" , and bits are added together to give you the address.

The IPv4 address You need to have a fairly good understanding of host IDs, network IDs, subnetting, and masks for just about any Microsoft certification exam. When assigning IP addresses, each host requires a subnet mask to determine which part of an IP address to use as the network ID and which to use as the host ID. For example, the default subnet mask for a Class C address is The subnet mask is also used to determine whether the destination host is on the local subnet or a remote subnet.

The subnet mask of the local host is compared against the IP address of the destination host and, through a process known as anding , it is determined whether the destination IP address is the local or a remote network.

If the destination IP address within a packet is on a remote network, the packet is sent to the default gateway. Basically, the number of 1's in the binary address of the subnet mask are masked against the IP address to determine if the address is on the local network or a remote network.

When the bits of the subnet mask are compared against the bits in the IP address, all combinations of 1's and 0's result in a value of 0, except for 1 and 1, which results in a value of 1. Let's take at an example of how this process works.

The source host has an IP address of The destination host has an IP address of As you can see from the preceding example, the source IP address is anded against the subnet mask. The destination address is anded against the subnet mask assigned to the source host.

If the results are not the same, the destination host is on a different network or subnet. Conversely, if the results are the same, it is determined that the destination host is on the local network. A, B, and C are for general-purpose use, D is used for multicasting, and E is reserved. These classes made it possible to use one portion of the bit IP address scheme for the network address and the remaining portion for nodes on the network.

In the past, some networks needed more addresses for systems than the a Class C address supplies. This was a major contribution to the shortage of IP addresses. Organizations often requested a Class B range that offered 65, available addresses rather than a few Class C ranges that might have suited their needs. The result was that many addresses within their allotted Class B blocks went unused. It effectively "removes" the class from an address for the purpose of combining ranges, so it makes better use of the limited number of remaining available IPv4 addresses.

A CIDR network address looks like this:. The network address is Implementing subnets helps control network traffic and enables network administrators to create smaller collision domains. Every node on the same physical ethernet network sees all data packets sent out on the network, which results in multiple collisions and affects network performance. Routers or gateways separate networks into subnets. Subnet masks on each node allow nodes on the same subnetwork to continue communicating with one another and with the routers or gateways they use to send their messages.

The following example is a default Class B subnet mask:. The following example is a Class B address using an additional bit subnet mask of Notice that instead of having the single subnet and 65, hosts per subnet allowed under the default subnet mask, you can have up to 16 subnets with up to 4, hosts per subnet by using a subnet mask of When you use standard subnet masks in classful IP addressing schemes, you can plan how many hosts you can support per subnet and how many subnets are available for use.

Table 3. In these classes, the X is the subnet mask variable in the table's Subnet Mask column. The table identifies how many subnets ID are supported by each subnet mask and the maximum number of hosts per subnet.

IP addresses are organized into different address classes that define the number of bits out of the 32 that are used to identify the network and which are used to identify hosts on a network. By examining the address classes, you can also determine the number of networks and the number of hosts. Class A addresses have an official start address of 0. However, the last usable client address in the range is The full range of addresses that can be assigned to hosts is 1.

The local host uses 0. Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Community Bot 1. Evan Anderson Evan Anderson k 18 18 gold badges silver badges bronze badges.

Clearly you're more eloquent then me! I have a client in VLAN 1 Why did DHCP decide to hand out an address from the SpacemanSpiff SpacemanSpiff 8, 1 1 gold badge 22 22 silver badges 35 35 bronze badges.

JamesRyan JamesRyan 8, 2 2 gold badges 23 23 silver badges 36 36 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Connect and share knowledge within a single location that is structured and easy to search. We use reservations to assign some hosts IP addresses. Is it possible for the server to assign a single host two IP addresses in different networks e.

In that case, the same address would be assigned for all the requests because it's just the same host requesting an IP out of the same scope. Sign up to join this community. The best answers are voted up and rise to the top.

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