tcp/ip routing problem
2007-12-25 11:41:00
Many many thanX to all who responded. the list is very long.
everybody pointed out that it was a DNS (name resolution) issue. indeed it
was.
the host A entry was not there in the host database of host B at all where
as host C entry was there. so when C tried to login to B it gives the login
prompt very fast but not to A.
before giving a telnet session to any host the server tried to do a reverse
lookup and if it can't get the hosts address eventually it will give the
connection and thus it will be delayed.
thanX a lot again to all who responded. I added the host A to B's database
and its now working smoothly.
ThanX again.
Prashant
My original post :
Prashant Ranade wrote:
> hello gurus,
> there are two subnets in our company. say
> a.b.c.xxx and j.xxx.xxx.xxx the a.b.c.xxx network has a router (a.b.c.1)
> connected to it and connected to internet. its a CISCO 2501. the second
> serial interface of this router is connected to another CISCO 2501 which
> is acting as a default router of the j.xxx.xxx.xxx network. the problem
> is when i do "telnet" from a machine A on a.b.c.xxx network to a machine
> B on j.xxx.xxx.xxx network it takes a long time to give a "login"
> prompt". i thought there may be some routing problem etc but when i did
> a "telnet" from a machine C on a.b.c.xxx network it gives me a " login"
> prompt very fast. when i do a reverse thing that is "telnet" from
> machine B to machine A the login prompt comes very fast. the route
> setting on both these machies is same. both machines have a default
> route to route a.b.c.1
> all the machies on j.xxx.xxx.xxx network have the default route set to
> the CISCO router connected to the network and conneted to the a.b.c.xxx
> network.
> the delayed login is very annoying. people here are doing telnet C first
> from A and then go to B as this is faster than directly going to B from
> A.
> can anybody suggest something here. any help is highly appreciated.
> TIA and IWS
> -------------------------------------------------------------------
> Prashant Ranade prashant@omsi.com
> System Administrator (510) 360 1100
> Open Management Software inc.
> -------------------------------------------------------------------
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