range of IP's using smb protocol

Hi,

I'm using Nutch for crawling Microsoft Windows shares using
smb
protocol. I can crawl my local network if I put in my
"urls" file urls
of all computers in the network. My "urls" file
looks like:

smb://comp1/
smb://comp2/
..

Is it possible to put in this file range of IP addresses? I
mean
something like this:

smb://192.168.18.*/ or smb://192.168.18.1/ -
smb://192.168.18.255/ or
anythig else.

I tried to put my networks name (smb://network_name/) as
jcifs says it
is a valid url
http://jcifs.samba.org/src/docs/api/jcifs/smb/SmbFile
.html.
But Nutch fails with java.net.UnknownHostException:

fetch of smb://werewolf/ failed with:
jcifs.smb.SmbException: smb://werewolf/
java.net.UnknownHostException: werewolf
        at jcifs.UniAddress.getByName(UniAddress.java:301)
        at jcifs.smb.SmbFile.getAddress(SmbFile.java:765)
        at jcifs.smb.SmbFile.getType(SmbFile.java:1171)
        at jcifs.smb.SmbFile.exists(SmbFile.java:1282)
        at
org.apache.nutch.protocol.smb.SMBResponse.<init>(SMBRe
sponse.java:94)

        at
org.apache.nutch.protocol.smb.SMB.getProtocolOutput(SMB.java
:65)
        at
org.apache.nutch.fetcher.Fetcher$FetcherThread.run(Fetcher.j
ava:145)


Thank you.