What are the subnet masks on your ethernet ports. If they are both
255.255.255.0 you have bigger problems than you think (ie you would never
be able to reach any host on that network).
To make this work you could use variable subnetting on your routers.
Assuming you only have the one classC address:
Make the 2501:E0 have ip address xxx.xxx.159.1 255.255.255.128
Make the 2509:E0 have ip address xxx.xxx.159.129 255.255.255.192
Then you can make your serial0s be xxx.xxx.159.253 255.255.255.252
and xxx.xxx.159.254 255.255.255.252
You have to enable non-classful routing with 'ip classless' and also
enable 'ip subnet-zero'. You will also need to run a routing protocol
that is intelligent enough to know variable subnet lengths (EIGRP
(easiest), OSPF, IS-IS, RIPv2 (blech)).
Note that with this config you have 125 hosts possible on your primary
ethernet segment (xxx.xxx.159.2-126) and 61 hosts possible on your 2509's
Ethernet segment (xxx.xxx.159.130-190) and you have lots of unused
addresses (xxx.xxx.159.192-251) that you could use later as you need them
by creating "secondary" address on any particular port.
g'luck
GK
At 06:49 PM 2/19/98 -0600, you wrote:
>Here is what I have ... Hopefully someone can help !!!
>
>
>I have a 2501 with:
>ether port numbered xxx.xxx.159.1
>serial port0 unnumbered e0 (xxx.xxx.159.1)
>serial port1 no ip address
>
>>From serial0 goes to a TSU hooked to our provider.
>>From serial1 goes to a 64k csu/dsu to a 64k csu/dsu on an as2509
>>From ether0 goes to our network hub where our current PM2 and internal
net
>sits.
>(everything works fine) for serial0 and ether0
>
>
>On the other end of the 2501 S1 is the as2509 with:
>ether port numbered xxx.xxx.159.26
>serial0 port unnumbered e0
>serial1 port shutdown
>
>>From Serial0 goes to the 64k csu/dsu connected back to our 2501
>>From Ether0 goesto a hub for later expansion of that network
>
>
>The Portmaster at our primary location is numbered xxx.xxx.159.25
>
>I would like to:
>number the serial1 port on the 2501 xxx.xxx.xxx.2 and the s0 port of the
>as2509 xxx.xxx.159.21
>
>This way I can telnet to the ports and get to the routers.
>
>When I try this I get the numbers overlap xxx.xxx.159.0
>
>
>Needless to say I can not ping from the 2501 to the as2509 or vice-versa.
>
>Please help and point me in the right config direction. (Thought I had
it
>but what I had didnt work!)
>
>Randy
>rts@rdr.net
>
>RTS
>rts@rdr.net
>Director of Operations
>
>Always Looking For A Better Way
>
>Oh Yea...Found a better way....
>
>RaDaR Computer Solutions (rdr.net)
>
>
>
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