Is the default route of the workstations still the 770's address
instead of the 1720's?
Dave
Ole Drews Jensen wrote:
>
> This might be slightly off topic, but I would like to get an answer if
> someone has one.
>
> Task:
>
> To change a remote office from an ISDN connection to a Frame Relay
> connection.
>
> Before:
>
> Workstations and printers were connected to a 3COM hub that was connected
to
> a 700 series ISDN router that was directly connected to another 700 series
> router which was connected to our LAN.
>
> Everything was working fine, but slow.
>
> Goal:
>
> Workstations and printers connect to a 3COM hub that connects to a 1720
> router that has a Frame Relay PVC to a 2620 router that connects to our
LAN.
>
> Steps:
>
> I connected the 1720 router to the smartjack and connected it to one
> workstation with a crossed cable to from the FastEthernet interface.
>
> I telnettet into the router and got everything up. I could see the active
> PVC and all was well.
>
> I rebooted the PC and got an IP address (plus more) from the DHCP server at
> the main office, and logged on to the network without any problems.
>
> The problem began after I got the workstations and printers shut down,
> unplugged the 700 series router from the hub, and connected the 1720
> instead.
>
> I could not login to the network anymore, and I could not ping, tracert or
> telnet into anything on the LAN. However, I could telnet to the 1720
router,
> and from there ping, tracert and telnet to the rest of the LAN.
>
> This was weird, because I knew that the hub worked when connected to the
> ISDN router, and I knew that the 1720 router could see the LAN, and I also
> knew that it worked with a crossed cable instead of the hub.
>
> I finally got a hold of a LinkSys switch which I connected instead of the
> hub, and now everything worked fine.
>
> ?????????
>
> Now, what could cause a hub to allow all communication through a port
> connected to an ISDN router but not a 1720 router, when they both work with
> a crossed cable and a switch?
>
> I did by the way also clear the arp cache on all my devices on the network,
> even though the problem didn't really point in that direction.
>
> Anyone has a clue what's going on, or is it something personal that the hub
> hates the 1720?
>
> Thanks,
>
> Ole
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Ole Drews Jensen
> Systems Network Manager
> CCNA, MCSE, MCP+I
> RWR Enterprises, Inc.
> [EMAIL PROTECTED]
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> http://www.RouterChief.com
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> NEED A JOB ???
> http://www.oledrews.com/job
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
David Madland
Sr. Network Engineer
CCIE# 2016
Qwest Communications Int. Inc.
[EMAIL PROTECTED]
612-664-3367
"Emotion should reflect reason not guide it"
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http://www.groupstudy.com/form/read.php?f=7&i=19853&t=19818
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