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List:       linux-router
Subject:    [LRP] dmz with 2 isp's how?
From:       Suresh Kumar R <listuser () yahoo ! com>
Date:       2001-06-28 11:49:24
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Hello,

We are using LRP with eiger+extended scripts of materhorn ver 1.0 in our lrp box with \
3 NICs as shown below.


      External Network (BAD) [via cisco router and rad modem ....]
                |
                |
            eth0|
         ---------------
         |203.200.144.163|             Server Network (DMZ)
         |               |eth2
         |               |----------------------------------------------
         |               |203.200.144.169|             |              |
         |               |               |             |              |
         |192.168.100.250|               |             |              |
         ---------------             --------       -------        -------
                | eth1               | SMTP |       | DNS |        | WWW |
                |                    --------       -------        -------
                |                203.200.144.170 .... (public ips)
                |
        Internal Network (GOOD)

The above setup has been working fine for one year now and now we have one more isp \
with a different ip subnet altogetheri, coming to the same cisco router thru another \
wan card. The cisco router has only one ethernet interface which goes to the lrp box.

What we need is this: we cannot change the dmz or internal lan. The traffic should go \
thru either of these links as which one is relatively free. 

What we tried: We added an alias for eth2 interface which shows up in the command "ip \
route show". But we fail to ping anywhere from the lrp box. Not even the router's new \
ip by the new isp.

We know the link is fine asi,  if we bypass the firewall everything is OK. 

Any suggestions on how I can survive?

With thanks,

Suresh
PS. Kindly sent a cc to suresh@ece.cet.ac.in
__________________________________________________
Suresh Kumar.R,  
Dept of Electronics & Communication
College of Engineering, Trivandrum - 695 016, INDIA
Phone: (O) 91 471 595634, 515660

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