Please Help: Session context sharing between wars in same app

Question

I'm using iplanet iAS6.0 SP1.
I have to share a session among 6 wars inside my application.
I have tested individual wars and they work fine. Now during integration
i find that session is not being shared.
in my application descriptor i have included all the wars and I have
used the same context-root name for all war entries.
On of the wars is a login.war and it sets some user previlages info into
session which has to be shared among all wars.
I'm not able to get it working.
My settings in each war for session info go like this,
<session-info>
<impl>distributed</impl>
<dsync-type>dsync-distributed</dsync-type>
<timeout-type>last-access</timeout-type>
<secure>false</secure>
<domain></domain>
<path></path>
<scope></scope>
</session-info>
I'm stuck here. Documentation says on making session distributed and
setting dsync-type to distributed should work.
What else should be done in SP1.
Is it a must to move to SP2 to solve this. And even in SP2 is it
straight forward?
Please help
my application.xml looks like this............
<application>
<display-name>myapp</display-name>
<module>
<web>
<web-uri>mywar1.war</web-uri>
<context-root>app</context-root>
</web>
</module>
<module>
<web>
<web-uri>mywarN.war</web-uri>
<context-root>app</context-root>
</web>
</module>
<module>
<web>
<web-uri>login.war</web-uri>
<context-root>app</context-root>
</web>
</module>
<module>
<ejb>myjar1.jar</ejb>
</module>
</application>

Answer 1

Thanks-- that wasn't exactly the solution, since the dates and times are correct and IP addresses on both machinges should have been handled by DHCP, but you solved my problem by reminding me that there is a TCP/IP extension, which I looked at and saw that TCP/IP was turned off. I turned it on, and now everything is as it was an hour ago. So thank you!