they expect written response
Please reply to our invitation by September, 1, 2012. He raised his hand to reply to the teacher's question.
Yes, it does.
"latter fire" refers to the Apocalypse.
Latter means in religion is to be free..^^
respond
Wow, too many unknowns. First, what do you mean by a reply? If you mean a reply from an intelligent creature, that has evolved to the point they could receive the message and then send a reply -- we don't know there are any such creatures. If you mean a reply from a transponder in a near Earth satellite the answer is less then a second.
When someone reads your message but doesn't reply, it could mean they are busy, not interested, or unsure how to respond.
If there are two options, the latter is the second one. By implication at least, the latter (second option) is contrasted with the former (first option).
It means to "Answer" or "Reply"
RE as in REply.
its negative! negative reply, answer that is not positive
Each IP packet has information about the destination, and the origin. "Reply IP address" probably refers to the origin; it is to the origin that any reply will have to be sent.