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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>12.1. Basic and Advanced Networking</title><link rel="stylesheet" type="text/css" href="Common_Content/css/default.css" /><link rel="stylesheet" media="print" href="Common_Content/css/print.css" type="text/css" /><meta name="generator" content="publican 2.8" /><meta name="package" content="Apache_CloudStack-Installation_Guide-4.0.0-incubating-en-US-1-" /><link rel="home" href="index.html" title="CloudStack Installation Guide" /><link rel="up" href="network-setup.html" title="Chapter 12. Network Setup" /><link rel="prev" href="network-setup.html" title="Chapter 12. Network Setup" /><link rel="next" href="vlan-allocation-eg.html" title="12.2. VLAN Allocation Example" /></head><body><p id="title"><a class="left" href="http://cloudstack.org"><img src="Common_Content/images/image_left.png" alt="Product Site" /></a><a class="right" href="http://docs.cloudstack.org"><img src="Common_Content/images/image_right.png" alt="Documentation Site" /></a></p><ul class="docnav"><li class="previous"><a accesskey="p" href="network-setup.html"><strong>Prev</strong></a></li><li class="next"><a accesskey="n" href="vlan-allocation-eg.html"><strong>Next</strong></a></li></ul><div xml:lang="en-US" class="section" id="basic-adv-networking" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="basic-adv-networking">12.1. Basic and Advanced Networking</h2></div></div></div><div class="para">
CloudStack provides two styles of networking:.
</div><div class="formalpara"><h5 class="formalpara" id="idp43660552">Basic</h5>
For AWS-style networking. Provides a single network where guest isolation can be provided through layer-3 means such as security groups (IP address source filtering).
</div><div class="formalpara"><h5 class="formalpara" id="idp27400168">Advanced</h5>
For more sophisticated network topologies. This network model provides the most flexibility in defining guest networks, but requires more configuration steps than basic networking.
</div><div class="para">
Each zone has either basic or advanced networking. Once the choice of networking model for a zone has been made and configured in CloudStack, it can not be changed. A zone is either basic or advanced for its entire lifetime.
</div><div class="para">
The following table compares the networking features in the two networking models.
</div><div class="informaltable"><table border="1"><colgroup><col width="33%" /><col width="33%" /><col width="33%" /></colgroup><thead><tr><th align="left">
<div class="para">
Networking Feature
</div>
</th><th align="left">
<div class="para">
Basic Network
</div>
</th><th align="left">
<div class="para">
Advanced Network
</div>
</th></tr></thead><tbody><tr><td align="left">
<div class="para">
Number of networks
</div>
</td><td align="left">
<div class="para">
Single network
</div>
</td><td align="left">
<div class="para">
Multiple networks
</div>
</td></tr><tr><td align="left">
<div class="para">
Firewall type
</div>
</td><td align="left">
<div class="para">
Physical
</div>
</td><td align="left">
<div class="para">
Physical and Virtual
</div>
</td></tr><tr><td align="left">
<div class="para">
Load balancer
</div>
</td><td align="left">
<div class="para">
Physical
</div>
</td><td align="left">
<div class="para">
Physical and Virtual
</div>
</td></tr><tr><td align="left">
<div class="para">
Isolation type
</div>
</td><td align="left">
<div class="para">
Layer 3
</div>
</td><td align="left">
<div class="para">
Layer 2 and Layer 3
</div>
</td></tr><tr><td align="left">
<div class="para">
VPN support
</div>
</td><td align="left">
<div class="para">
No
</div>
</td><td align="left">
<div class="para">
Yes
</div>
</td></tr><tr><td align="left">
<div class="para">
Port forwarding
</div>
</td><td align="left">
<div class="para">
Physical
</div>
</td><td align="left">
<div class="para">
Physical and Virtual
</div>
</td></tr><tr><td align="left">
<div class="para">
1:1 NAT
</div>
</td><td align="left">
<div class="para">
Physical
</div>
</td><td align="left">
<div class="para">
Physical and Virtual
</div>
</td></tr><tr><td align="left">
<div class="para">
Source NAT
</div>
</td><td align="left">
<div class="para">
No
</div>
</td><td align="left">
<div class="para">
Physical and Virtual
</div>
</td></tr><tr><td align="left">
<div class="para">
Userdata
</div>
</td><td align="left">
<div class="para">
Yes
</div>
</td><td align="left">
<div class="para">
Yes
</div>
</td></tr><tr><td align="left">
<div class="para">
Network usage monitoring
</div>
</td><td align="left">
<div class="para">
sFlow / netFlow at physical router
</div>
</td><td align="left">
<div class="para">
Hypervisor and Virtual Router
</div>
</td></tr><tr><td align="left">
<div class="para">
DNS and DHCP
</div>
</td><td align="left">
<div class="para">
Yes
</div>
</td><td align="left">
<div class="para">
Yes
</div>
</td></tr></tbody></table></div><div class="para">
The two types of networking may be in use in the same cloud. However, a given zone must use either Basic Networking or Advanced Networking.
</div><div class="para">
Different types of network traffic can be segmented on the same physical network. Guest traffic can also be segmented by account. To isolate traffic, you can use separate VLANs. If you are using separate VLANs on a single physical network, make sure the VLAN tags are in separate numerical ranges.
</div></div><ul class="docnav"><li class="previous"><a accesskey="p" href="network-setup.html"><strong>Prev</strong>Chapter 12. Network Setup</a></li><li class="up"><a accesskey="u" href="#"><strong>Up</strong></a></li><li class="home"><a accesskey="h" href="index.html"><strong>Home</strong></a></li><li class="next"><a accesskey="n" href="vlan-allocation-eg.html"><strong>Next</strong>12.2. VLAN Allocation Example</a></li></ul></body></html>
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