Triple login required by svn+ssh and dynamic IP address for server

Hi,

I'm testing SVN and plan to transition to SVN from CVS. Before
getting to my main question, can anyone tell me (honestly) why should
I move to SVN while CVS is still commonly use out there in the open
source community? My company just started to use CVS not long ago and
now we find SVN works much better especially the binary files part.
Moving to SVN means we have to use SVN for our internal development
and still retain CVS for development in the open source like
sourceforge and many others.

Now, my main question:

I installed SVN-1.2.0 on my SuSE Linux 9.1 Pro box. I invoke svnserve
via xinetd. I am able to do

        svn co svn+ssh://user@hostname/svn/pro/aaa

I was then asked to enter password for user thrice. I have read the
archive about required to enter password twice.

Why is it so? Is this a bug, or extra security? :-) Is there anyway
to change this?

Second question: I'm using dynamic IP address for the server. SVN
will store the url in .svn folder and when IP address of the server
change, svn will not work because of different server url. Is there a
way to overcome this problem? One way is to manually edit all
the .svn/entries but this can become tedious if there are many nested
folders in the tree.

TIA,

--
"If you missed the rising sun and the morning dew, don't miss the  
beautiful sunset." -- Adrian Hoe inspired by Michal Nowak, June 15 2004
http://adrianhoe.com