Technical data
ServerIron ADX Advanced Server Load Balancing Guide 63
53-1002435-03
Other transparent cache switching options
2
FIGURE 13 Basic TCS for passive FTP
TCS with spoofing
In Figure 14, the cache server is spoofing the client's IP address instead of using its own IP address
when accessing the real server. In Flows 3 and 4, the cache server is using the client's IP address
as the source address instead of using its own IP address.
FIGURE 14 TCS with spoofing for passive FTP
Client
CIP
1a Ctrl (CIP:x - RIP:21)
2a Data (CIP:z - RIP:y)
2b Data (CIP:z - RIP:y )
1b Ctrl (CIP:x - RIP:21)
4b Data (TIP:j - RIP:k)
3a Ctrl (TIP:i - RIP:21)
3b Ctrl (TIP:i - RIP:21)
4a Data (TIP:j - RIP:k)
CIP-Client IP Address
RIP-Real Server IP Address
TIP-Cache Server IP Address
ServerIron ADX Real Server
RIP
Transparent
Cache Server
TIP
Client
CIP
1a Ctrl (CIP:x - RIP:21)
2a Data (CIP:z - RIP:y)
2b Data (CIP:z - RIP:y )
1b Ctrl (CIP:x - RIP:21)
4b Data (CIP:j - RIP:k)
3a Ctrl (CIP:i - RIP:21)
3b Ctrl (CIP:i - RIP:21)
4a Data (CIP:j - RIP:k)
CIP-Client IP Address
RIP-Real Server IP Address
TIP-Cache Server IP Address
ServerIron ADX Real Server
RIP
Transparent
Cache Server
TIP
Spoong