Just a guess....I couldn't find any currect reference to Dailam
The Mullahs may be ginning up "An Incident" to justify their next move.
The province mentioned in a post above is on the Caspian, and has a bit of a border with the Soviet Union.
Gilan Province.
see here:
http://globalsecurity.org/military/world/iran/images/iran1.gif
from here:
http://globalsecurity.org/military/world/iran/maps.htm
Dailam is in the mountainous region on the southwest bank of the Caspian Sea. I don't think it's a city, but a region.