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Cisco 2600 ver. 11.3 nat/pat configuration able to tie a 192.xxx.xxx.xxx 255.255.255.0 lan to a 10.1.xxx.xxx 255.0.0.0

Posted on 2004-08-08
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Last Modified: 2010-04-11
I am in dire need of a configuration to tie the 192.x.x.x to the 10.1.x.x lan.  It is for interconnection of  a municipal Police Dept. to their county courhouse for records aquisition via ISDN bonded pair at 128.  I have Cisco 2600 ver. 11.3 on both ends with no connectivity problems at all at the dialer or Ethernet0/0.  I have no problem pinging from the County side(10.1.x.x) through the router on the City side(192.x.x.x) to any client machine having the 192.x.x.x address in the gateway table of the Windows network configuration.  My only problem is pinging the County AS400 server throught the county Cisco 2600 10.1.x.x.  I can ping the router 10.1.5.123 255.0.0.0 with no problem, but cannot ping the AS400 server at 10.1.5.150 255.0.0.0.  The only difference is that I have the City router listed in the static routing table of another router on the City lan, and am not allowed, so it seems to do this on the county side.  The City is supplying both routers and both ISDN legs for the connection and says it cannot afford to upgrade the IOS of the Cisco routers....Can anything make it work?
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Question by:aoop
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anupnellip earned 2000 total points
ID: 11750359
have you got the return route on the as400 to the 192.x.x.x network . what is the defaut gateway on the as400 . IF it is pointing to a differnt router & not 10.1.5.123 , then you need to add route to the 192.x.x.x on that router so that packest to 192.x.x.x is routed through 10.1.5.123 .

Regards

Anup
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by:anupnellip
ID: 11750368
or else you can  manually add route on the AS400 to point to 192.x.x.x network .
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by:aoop
ID: 11750504
That's what I did on the City 192.x.x.x side and it works very well.  I don't know if the county MIS group is afraid of the AS400 or what, but best I can see, the addition of the   192.x.x.x  through the 10.1.5.123 would seal the deal, but they are telling me I have no option, but to NAT through and the routers are incapable as they sit, and it shouldn't be necessary to pour good money into a pit when it isn't necessary.  If they would have thrown a static route in just about any other County router that the AS 400 can hit, I would have had a good weekend with not extra hours wasted.  I know nothing about the AS400, but it "has to have" a gateway table, or routing table of some sort.  Thank you very much for your quick reply.....at least now I don't "think" I am totally nuts.
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