Re: Routing
From: Douglas Clinton (see_my_sig_at_devnull.com)
Date: 11/05/03
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Date: Wed, 05 Nov 2003 13:04:30 -0500
On Wed, 05 Nov 2003 01:55:08 -0800, Thamara wrote:
> hello group,
>
> The 2 NICs on my machine, which is NOT connected to the Internet are
> as follows:
>
> eth0
> IP: 10.2.255.253
> B'cast:10.2.255.255
> mask:255.255.255.253
>
> eth1
> IP:10.2.240.234
> B'cast:10.2.247.255
> mask:255.255.248.0
>
> When i try to ping hosts either side of the Linux machine from the
> respective machines that lie side by sideof the linux router it does
> not respond. It only reaches the opposite side network
> interface,dosn't go beyond that to the intended machine. But from the
> Linux machine i could ping the hosts individually. I have enabled
> ip_forwarding through /etc/sysctl.conf. /proc/sys/net/ipv4/ip_forward
> also echos to 1.
> For Ex:
> Assume there is a machine 10.2.240.235 on the network eth1 is
> connected to and i want to ping 10.2.255.254 which is in the network
> connecting to eth0. When i try to ping 10.2.240.236 from 10.2.255.254
> it stays blank. Well these two machine i refer here are 2 CISCO 2705
> routers. My network expert says that there is no issue in the routers.
> Infact he showed me the same setup having one of his routers in the
> middle. Help me to get over this. Do i have to run some routing
> protocol to bet about doing this?.
>
> Thanks for your time.
Wow Dude you used 23 bits in that last octet netmask on eth0.
Thats just wrong...well pointless actually.
Here is a cool online subnet calculator:
http://txweb.tactix.com/subnet.html
This is the wrong newsgroup for this question.
Try: comp.dcom.sys.cisco
Go back and redo your subnetting.
Hint: borrow less bits.
Then start from layer 1 when you set up the two routers and any hosts on
each subnetwork.
Then start on layer 2.
Enable routing, keep it simple ie: RIP
http://www.cisco.com/pcgi-bin/Support/browse/psp_view.pl?p=Internetworking:RIP
Seriously dude, wipe out whatever lame config is on those routers and
start from layer 1 again.
Good Luck
-- GNU/Linux is God get used to it declinton@sympatico.ca Linux User # 276385
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