Proper network design?
I have a few questions for the group that maybe someone can answer. From my
studies when I got CCNA certified, I understood that different networks were
ALWAYS separated by a router. At my company we have this equipment that was
purchased several months ago that acts as a d
Can you post the config of the router? Does the Ethernet interface have
sub-interfaces? One for each subnet? The answer is probably in the
configuration of the interface on the router. What IP and Subnet mask does
it have? Could be that the subnet mask of the router Ethernet is
255.255.240.0
No subinterfaces are used. Here's the Cisco 2514 config:
Router#show startup-config
Using 940 out of 32762 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
ip subnet-zero
!
interface Ethernet0
description outside
192.168.0.100 is what is doing the real routing then for 192.168.2.0/24. If
you follow the path, from a 192.168.0.20 machine to 192.168.2.20 say, it
goes from 192.168.0.20, to the default gateway, 192.168.0.1 which checks the
route table and sends it to 192.168.0.100 (which is on the same network
TED]]
Sent: Wednesday, July 24, 2002 11:26 AM
To: [EMAIL PROTECTED]
Subject: Proper network design? [7:49536]
Proper network design?
I have a few questions for the group that maybe someone can answer. From
my
studies when I got CCNA certified, I understood that different networks
were
ALWAY
er network design? [7:49536]
No subinterfaces are used. Here's the Cisco 2514 config:
Router#show startup-config
Using 940 out of 32762 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
ip subnet-zero
!
inte
Now I understand. I read a few articles on the Cisco site after searching
for the term "router on a stick" and found a good explanation. Thanks for
your help.
Frank
Message Posted at:
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--
ect: RE: Proper network design? [7:49536]
> Now I understand. I read a few articles on the Cisco site after searching
> for the term "router on a stick" and found a good explanation. Thanks for
> your help.
>
> Frank
Message Posted at:
http://www.groupstu
Yes, I am using a 2514. It does have 2 10BaseT interfaces (through AUI
adapters). I am not using subinterfaces. Both ports are used - one port goes
to the Internet (for hosts that require Internet access) and the other
connects directly to the 24 port hub which resides within the internal LAN.
Thi
I assume you are using primary and secondary IP address on this one ethernet
interface (which is creating the "router on a stick" effect)?
Rob
Frank H wrote:
>
> Yes, I am using a 2514. It does have 2 10BaseT interfaces
> (through AUI adapters). I am not using subinterfaces. Both
> ports are us
No, just one IP address on each interface. Check my earlier post for the
full configuration.
Message Posted at:
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The "router on a stick" effect comes from this:
ip route 192.168.2.0 255.255.255.0 192.168.0.100
All traffic destined to any network not on 192.168.0.0 goes to the gateway
(192.168.0.1) on interface ethernet 1. The router then re-routes 192.168.2.0
traffic back on the 192.168.0.0 network to 192.
This is not the classcial router on a stick model. That model is for routing
between VLANs on a router with 1 interface using trunking. All this router
is doing is taking packets from its eth1 interface, comparing them to its
routing table and forwarding out the same eth1 interface for the gateway
PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 24, 2002 2:32 PM
To: [EMAIL PROTECTED]
Subject: Re: Proper network design? [7:49536]
No, just one IP address on each interface. Check my earlier post for the
full configuration.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7
I understand this configuration, but question how the 192.168.2.2 machine
knows how to get back to the 192.168.0.20. I don't question that it will
work, but if it is not a router interface with 2 addresses from each segment
defined, then what default gateway does the 192.168.2.2 machine use? If
ing a host configured as 10.10.0.100/24. I believe that something
similar is going on here. Some debugs and configs would be great cause you
learn something new everyday.
- Original Message -
From: "Frank H"
To:
Sent: Wednesday, July 24, 2002 4:43 PM
Subject: Re: Proper network design?
I re-read your initial question...
I would assume that 192.168.0.100 is also acting as a router...if this is
true, then this would work...
Is the cellular device also acting as a router?
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=49586&t=49536
192.168.0.20192.168.0.1 (Router)
(Host) | Static forwarding to 0.100
|
|
|
|
192.168.0.100 (Acting as Router)
The router doesn't know there are 2 segments on the Ethernet. The static
route is routing packets destined for the 192.168.2.0/24 to 192.168.0.100.
That device is also doing routing. Linux box I think. My question is how
does 192.168.0.100 know of both subnets. Does it have 2 interfaces? I'm
Yes, Ben...I think that is what he is saying...I made a diagram in a past
post.
Message Posted at:
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R
Frank H wrote:
>
> Proper network design?
>
> I have a few questions for the group that maybe someone can
> answer. From my studies when I got CCNA certified, I understood
> that different networks were ALWAYS separated by a router. At
> my company we have this equipment that was purchased sever
Frank H wrote:
>
> Yes, I am using a 2514. It does have 2 10BaseT interfaces
> (through AUI adapters). I am not using subinterfaces. Both
> ports are used - one port goes to the Internet (for hosts that
> require Internet access) and the other connects directly to the
> 24 port hub which resides
sam sneed wrote:
>
> This is not the classcial router on a stick model. That model
> is for routing
> between VLANs on a router with 1 interface using trunking. All
> this router
> is doing is taking packets from its eth1 interface, comparing
> them to its
> routing table and forwarding out the s
From: sam sneed [mailto:[EMAIL PROTECTED]]
Sent: 24 July 2002 22:54
To: [EMAIL PROTECTED]
Subject: Re: Proper network design? [7:49536]
This is not the classcial router on a stick model. That model is for
routing between VLANs on a router with 1 interface using trunking. All
this router is doi
Thanks for your explanation - I can understand my setup very clearly now. I
originally asked this question because I have not been exposed to that
situation before (I'm at the CCNA level). You are correct in saying that the
cellular box does routing for the 192.168.2.0 network. I was also incorrec
I'm curious about why the Linux box couldn't be configured to do the same
job as the Cisco router also. Let us know if your Linux colleagues tell you.
Wouldn't that be great if they could put the Linux box back and give you the
router for your home lab? ;-)
Thanks for a great discussion.
Priscil
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