Routing problem using static (inside, outside)

[comn8u2011]

I'm trying to route a whole subnet (10.1.51.0) to always use an external static ip address (188.155.122.205).  We have two T1 lines on a link balancer, but a vendor for one of our faciltiy's software cannot process transactions from the second T1's ip address.  Both T1 lines have to be primary on the link balancer and the fix that I received from the link balancer's support did not work.  I would instead like to route it on our Cisco 5510 firewall.  Tell me if the following would work.  If not, then what should I use.

static (inside,outside) tcp 188.155.122.205 http 10.1.51.0 http netmask 255.255.255.255

[alexei.fadeev]

I belive you have to use a

If a network you use x.x.x.0 255.255.255.0(or else)

if a single host you have to use x.x.x.1 255.255.255.255

[Karsten Iwen]

In your static you build a translation from the *host* 10.1.51.0 to the public address. Probably not what you want. But you cant't build a static connection from a network to a single host.

Which side initiates the connection? If only the hosts on the net 10.1.51.0/24 initiate the connection, then you can use a dynamic translation to that IP:

nat (inside) X 10.1.51.0 255.255.255.0

global (outside) X 188.155.122.205