You need a transit visa:

All visitors to Australia (except New Zealand passport holders) must obtain a visa, a transit visa or ETA before they enter Australia (including travel to Norfolk Islands).

(Source)

Having completed the form on the Australian visa website, you do need a visa:

(Source)

As shown in the image, this is free, allows you to stay for up to 72 hours and usually processed within 19 days. You can read more details and apply here.

You need a transit visa as Iran is not in this list of nationalities able to transit without a visa.

(Source)

Having completed the form on the Australian visa website, you do need a visa:

(Source)

As shown in the image, this is free, allows you to stay for up to 72 hours and usually processed within 19 days. You can read more details and apply here.

Having completed the form on the Australian visa website, you do need a visa:

(Source)

As shown in the image, this is free, allows you to stay for up to 72 hours and usually processed within 19 days. You can read more details and apply here.

You need a transit visa:

All visitors to Australia (except New Zealand passport holders) must obtain a visa, a transit visa or ETA before they enter Australia (including travel to Norfolk Islands).

(Source)

Having completed the form on the Australian visa website, you do need a visa:

(Source)

As shown in the image, this is free, allows you to stay for up to 72 hours and usually processed within 19 days. You can read more details and apply here.