Given all the information you get from ipconfig /all, how do you tell what the ip address is that can be used to have a foreign host contact a server on a wireless laptop? I have a hunch this is not the right question. Apparently the isp uses the physical addresses in the subnet to route response information from servers to browsers on their network. Is that right? Mainly, I want to be able to test my Tomcat server running on my laptop from a foreign client at another location. The laptop is running a wireless connection to a router from a cable connection with my isp. None of the ip addresses supplied by ipconfig /all work for that purpose. If I get the ip address that my browser gives to a foreign server and resolve that to a host name, it is a series of hexidecimal numbers (12 of them)followed by a dot and the isp URL, e.g. 000d88870c4e.isp_name.com. What does it all mean?
Michael McGrady
At 08:17 AM 12/15/2003, you wrote:
You should be able to get your "real" ip address from your router configuration app. You can get your private subnet address from the command line ("ipconfig /all" on Windows, "ip addr" on most Linux distributions, or similar commands). Then you need to forward incoming requests on port 8080 or whatever port you're using now on your router to the listening port on your machine running the server. You're probably already doing all that, but I just thought I'd be explicit.
Some dynamic DNS services also have utilities for reporting your real address, although your router should tell you.
-adam
webmaster wrote:
Thanks, Martin, but I think the problem is that there is a subnet on a wireless router that makes the true ip address of the tomcat running on this machine immediately unavailable. What I have to do is to find out how to find the real ip address. Getting one from a request object sent to a foreign computer does not seem to work, as that seems to be an alias from the isp that hides the true ip address as well. Why the true ip address is hidden by the isp is not clear. Any ideas?
At 09:26 AM 12/15/2003, you wrote:
//check $TOMCAT_HOME/conf/server.xml
<!-- Define a non-SSL Coyote HTTP/1.1 Connector on port 8081 -->
<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8080" minProcessors="5" maxProcessors="75"
enableLookups="true" redirectPort="8443"
acceptCount="100" debug="0" connectionTimeout="20000"
useURIValidationHack="false" disableUploadTimeout="true" />
Regards, Martin
----- Original Message ----- From: "webmaster" <[EMAIL PROTECTED]> To: "Tomcat Developers List" <[EMAIL PROTECTED]> Sent: Monday, December 15, 2003 2:05 AM Subject: Re: Dynamic DNS
> Thanks for the response. I am going to dev because I thought and still
> think a bit that it might be a dev issue. I have tried 8080 without
> success. I have created a "browser" (URLConnection send on port 80 and
> 8080) within Tomcat which can talk via a port 80 or port 8080 http
> connection with another tomcat with a dynamic dns. But, trying it with
> another "real" browser it does not work.
>
> At 09:24 PM 12/14/2003, you wrote:
> >This question is probably better asked on the users list.
> >
> > > I am trying to use my home computer for development and need to access
a
> > > running web server on the computer. However, for some reason I cannot
> > > access Tomcat using a http://[dynamic ip address] like.
> >
> >Are you running Tomcat on port 80? Many consumer cable/DSL providers
block
> >port 80 on their residential IP blocks because of Code Red, Nimda c.s.
Try
> >running the httpd adaptor of Tomcat on a different port.
> >
> >S.
> >
> >--
> >[EMAIL PROTECTED] http://www.temme.net/sander/
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> >
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