Alteon Application Switch Operating System Application Guide
Global Server Load Balancing
758
Document
ID:
RDWR-ALOS-V2900_AG1302
To add a NAT device IPv4 address to an Alteon server
1. Set the network preference to IPv4.
2. Add the service public IP address (NAT) of the device to the Alteon server.
To add a NAT device IPv6 address to an Alteon server
1. Set the network preference to IPv6.
2. Add the service public IP address (NAT) of the device to the Alteon server.
Using Border Gateway Protocol for GSLB
The Border Gateway Protocol (BGP)-based GSLB uses the Internet's routing protocols to localize
content delivery to the most efficient and consistent site. This is done by using a shared IP block
that co-exists in each Internet Service Provider (ISP) network and is then advertised, using BGP,
throughout the Internet.
Because of the way IP routing works, BGP-based GSLB allows routing protocols to route DNS
requests to the closest location, which then return IP addresses of that particular site, locking in the
requests to that site. In effect, the Internet is making the decision of the best location for you,
avoiding the need for advanced GSLB.
Remote servers
173.121.34.5 (site B
service public IP)
155.23.112.39
(site C service IP)
145.121.34.3 (site A
service public IP)
155.23.112.39
(site C service IP)
145.121.34.3 (site A
service public IP)
173.121.34.5
(site B service public
IP)
Alteon public IP (NAT)—
no need to configure
145.121.34.4
173.121.34.6
>> # /cfg/slb/virt 1/ipver v4
>> # /cfg/slb/virt 1/nat
>> Virtual Server 1# nat
Current NAT IP address: 0.0.0.0
Enter new NAT IP address: 145.121.34.3
>> # /cfg/slb/virt 1/ipver v6
>> # /cfg/slb/virt 1/nat
>> Virtual Server 1# nat
Current NAT IP6 address: 0:0:0:0:0:0:0:0
Enter new NAT IP6 address: 173.121.34.5
Table 65: GSLB Configuration Behind NAT Devices (cont.)
IP Address Type
Site A
Site B
Site C
