can ping it,but can't access it

[pbxphoneman]

I have a dsl router that works great on my local net and I can access the routers internal HTML server,But from a remote LAN or different subnet,I can PING it just fine but can't open it's internal HTML server (can't surf through it either,but I'll start small first) when I put in the IP addy in the browser I can see it connect for a split second then pulls up the "page cannot be displayed" page.tracert works fine too...just can't surf from remote LAN or open it's HTML server.Can my DSL router not be allowing other subnets other then it's own to route to?Any tools out there to see why request is failing?

any thoughts?
Thanks

 

[routerman]

The internal HTML server can be protected by access list I'm sure who ever configured this device would apply such a list to stop the device being accessed from the web etc. The recommendation is that this server is actually disabled for security reasons. Do you have access to the router to view and change the configuration?

 

[pbxphoneman]

Yes,I have access to everything,I own all the equipment and the T1.Someone suggested to me that because my DSL router is doing DHCP/NAT for the local LAN that's it's on..it wouldn't do NAT to/from a remote network (the network on the other side of the T1)The remote T1 router has not been configured to do DHCP/NAT for the remote network(the network it sits on).There is just a single PC hooked up to it configured with a static IP and a gateway entry of the T1 router.Data traffic between both LANS works great but remote network can't access DSL (internet) as I would like it to.I can change these T1 routers over to bridge mode and solve all my problems,but really wanted to see if I could get all this stuff to work with doing IP routing.It is a home project to play with in spare time.The diagram of the network is here

http://citlink.net/~toddg/network/network.jpg

any suggestions would be greatly appreiated

 

[jamin123]

Do a trace and are you using a DNS?

 

[routerman]

I had a look at the diagram, that sure helps, pity Tek-tips wont support this feature. From the description of the problem it sounds like a routing issue.

Frome the remote subnet, across the T1, when you say you can ping the DSL router, you meant the LAN facing interface connected to the switch, right? But you try to connect to the HTTP server at the same address and that fails. Is the ping done from the PC or the T1 router?

If so is the HTTP server on the DSL router tied in to a loop back address, or the Internet facing address. If so it may be a routing issue, your remote LAN dosent have a route to that subnet.

As for surfing through, what is the default route in the remote T1 router, (gateway of last resort in sh ip route).

Also your Lan A T1 needs a route back to LAN B as does the DSL router.

 

[pbxphoneman]

yes,pinging LAN interface of DSL router (192.168.254.254) from remote PC.internal HTML server on DSL is tied on the internal LAN addy (config menus)PING/TRACERT work fine to it.but do a TRACERT to an internet address and it seems not to know what to do with it.(destination unreachable)I do have a route defined in the DSL router pointing to the remote subnet.I need to look the default route (0.0.0.0 ) where it should send IP address it doesn't know what to do with.I think maybe I've hit on something with the error message when I do a tracert from the remote LAN to the internet.I'm sure I have a default route added in the T1,maybe I need one too in my WAN subnet?? I'll have to play more.LAN to LAN across the T1 works fine,so I think my basic routing is in place for that to work.
thanks allot!!!!

 

[pras680]

hi,
i have a similar problem..i use 4 computers thro a router and it was working fine so far and suddenly 2 of them are not able to obtain IP addresses from DHCP and has autoIPconfiguration and i cant use network with that.i reinstalled drivers and nothing worked. could anyone help me out? when i use ipconfig /renew it says DHCP unreachable.

 

[pbxphoneman]

I switched to adifferent router and I'm now able to access the internal HTML server inside the DSL router.
Pras680...what is the "scope" of DHCP addresses that the router is handing out?what version of WIN are you using?(I assume it's WINx)