Black Box Corporation
1000 Park Drive, Lawrence, PA 15055-1018
USA, Canada: www.blackbox.com,
EU, Africa, Asia, South America, Australia: www.blackbox.eu
137
Step 5: Click
Save Config
to save all changes to flash memory.
D.4 DNS Inbound Fail Over
NOTE: Before proceeding, please ensure that both WAN1 and WAN2 are properly
Built-in DNS
192.168.2.2
192.168.2.3
FTP
HTTP
200.200.200.1
www.mydomain.com
200.200.200.1
Authoritative Domain Name Server
Before Fail Over
100.100.100.1
After Fail Over
100.100.100.1
DNS
DNS
Built-in DNS
192.168.2.2
192.168.2.3
FTP
HTTP
1st connection
2
nd
connection
1st connection
2
nd
connection
www.mydomain.com
DNS
DNS