Tomcat and IPv6

[Marco Brambilla]

Hello everybody,

I'm a student and I'm working for a university assay in order to make tomcat run on IPv6 (between the other things).
I read around that tomcat working with IPv6 should depend on the ability of the underlaying VM to be compatible with IPv6 and not on tomcat itself.
I'm using J2SDK1.4.1 on Linux RedHat 7.3, kernel 2.4.19 recompiled with IPv6 modules, and tomcat 4.1.18.
When I point Mozilla(1.2.1) to :

http://[::1]:8080 (Tomcat lisening on port 8080, of course)
http://[::1] (Tomcat lisening on port 80, of course)
http://[my site-local ip6addr]:80 or 8080 (Tomcat lisening on the right port, of course)

I always receive the same response: a white page.
Sniffing the traffic with Ethereal on the loopback interface, I discovered that Tomcat answers:

"Error 404 - Bad Request".

If I point Mozilla to my IPv4 address, no metter the port, everything works perfectly!
I tried also with Apache and it works perfectly with both IPv4 and IPv6, so the IPv6 stack should be working right.
Can anybody please tell me if it's only a configuration mistake or if there is a deeper reason for this problem ?
Can actually Tomcat work over IPv6 ?
Since Tomcat working on IPv6 is a necessary condition for me to get my degree, any help will be really appreciated.
Thanks in advance

Marco


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