[tor-bugs] #3982 [Tor Client]: MAPADDRESS for IP ranges (CIDR, etc)

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#3982: MAPADDRESS for IP ranges (CIDR, etc)
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 Reporter:  grarpamp     |          Owner:                    
     Type:  enhancement  |         Status:  new               
 Priority:  normal       |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client   |        Version:  Tor: 0.2.2.32     
 Keywords:               |         Parent:                    
   Points:               |   Actualpoints:                    
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Comment(by nickm):

 So, if somebody configured this, they couldn't use any BEGIN cells with a
 hostname in them?

 Right now, if Tor gets a SOCKS request for "www.torproject.org:443", it
 tells its exit node "connect to www.torproject.org:443" -- that's the
 BEGIN cell.  And the exit node says "okay, I did it -- I connected you to
 38.229.70.16:443" -- that's the CONNECTED cell.

 But if you've set things up so that 38.229.70.0/8 gets remapped to
 something else, then now it's too late: you already made a connection to
 38.299.70.16 when you connected to www.torproject.org.

 So in order to use this feature, you would need to change how Tor behaves
 when its told to connect to a hostname over SOCKS.  That's why I said "We
 would need to figure out how this would interact with DNS resolution".

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3982#comment:1>
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