Domain Settings
You need to register the domain domainname.com, the responsible name server ns1.domainname.com and its IP address 211.21.33.186 to a registrar.
| Domain Name | TTL | Responsible Mail | Primary Name
Server |
IPv4 Address |
| domainname.com | 30 | admin.domainname.com | ns1 | 211.21.33.186 |
A/AAAA Record
| Host Name | When | Source IP | To Policy | TTL |
| www | All-Time | Any | web | 30 |
Multihoming answers to queries for www.domainname.com with IP address (211.21.33.186 or 61.64.195.150) of the better one of the two WAN links according the their upstream load, so that external users can always access the virtual server through an efficient WAN link.
Example 2
Here is another similar usage for Multihoming and an internal SMTP server. Multiple will answer the mail server responsible for accepting recipient email for domain domainname.com, for example user@domainname.com.
An internal mail server (192.168.0.200 on SMTP 25) is installed in LAN and virtual server on FortiWAN is associated with it by the following settings on Web UI: Service > Virtual Server (See Virtual Server for details):
| WAN IP | Service | Algorithm | Server Pool
Server IP |
Service |
| 211.21.33.186 | SMTP(25) | Round-Robin | 192.168.0.200 | SMTP(25) |
| 61.64.195.150 | SMTP(25) | Round-Robin | 192.168.0.200 | SMTP(25) |
To make accesses distributed among the two WAN links by weighted round-robin, you need to have Multihoming configured as followings. Go to Service > Multihoming on Web UI, enable Multihoming (disable Relay) and have the following basic settings configured.
A Record Policy Settings
| Policy Name | Algorithm | Policy Advance Setting
WAN Link IPv4 Address |
Weight |
| smtp | By Weight | 1 211.21.33.186 | 1 |
| 2 61.64.195.150 | 1 |
Domain Settings
You need to register the domain domainname.com, the responsible name server ns1.domainname.com and its IP address 211.21.33.186 to a registrar.
| Domain Name | TTL | Responsible Mail | Primary Name
Server |
IPv4 Address |
| domainname.com | 30 | admin.domainname.com | ns1 | 211.21.33.186 |
A/AAAA Record
| Host Name | When | Source IP | To Policy | TTL |
| mail1 | All-Time | Any | smtp | 30 |
MX Record
| TTL | Host Name | Priority | Mail Server |
| 30 | [Leave it blank] | 1 | mail1 |
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