how to configure this in OCLhashcat?

[xtrusion]

trying for several hours now to configure the follow sha256 bruteforce

hash: AE13900912E9B41CBD5AC1AF57F8854FD3C4BCC0A22857DCE38A44FBD292BD75
original code: 00000000123456789012

salt: 00000000
password: 123456789012
the password is always nummeric

salt is always the same, password can change, i want to bruteforce the password

I hope someone can give me an example or any directions how to make this over GPU since at the moment i'm a little bit lost to get all the options correct