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Im a dba not a network guy... :) <br>
Well.... ok I know there are technical "reasons" why this doesn't seem
to "work"<br>
<br>
But - why can I ping any other ip address .... ie Google<br>
64.233.167.99<br>
<br>
Ok I guess thats "resolvable" and not private. My thinking is ping
should try and "find" the address<br>
<br>
Maybe I need a type of local dns...(??) How does one avoid manually
adding "routes"<br>
<br>
my port scanner - I give a range 10.54.0.0 - 10.54.7.55, Im thinking it
should try all addresses in between and it only gets the ones on
10.54.7.0<br>
<br>
The comment below sounds like what I need... thanks!<br>
<br>
"<br>
<pre wrap="">c:\> route add 10.54.0.0 MASK 255.255.255.0 10.54.7.16
But this should give you access on both 10.54.0.2 and 10.54.0.3</pre>
"<br>
<br>
C:\>route add 10.54.0.0 MASK 255.255.255.0 10.54.7.16<br>
<br>
C:\>ping 10.54.0.2<br>
<br>
Pinging 10.54.0.2 with 32 bytes of data:<br>
<br>
Reply from 10.54.0.2: bytes=32 time<1ms TTL=64<br>
Reply from 10.54.0.2: bytes=32 time<1ms TTL=64<br>
<br>
My purpose is to have a private network between database servers
(oracle rac) where only specific traffic is allowed, and it works that
way, I was just surprised that I want able to ping the 0 subnet.<br>
So I need to add the route...<br>
<br>
Thanks for everyones feedback. Hopefully I can contribute
something....in the future<br>
;-)<br>
<br>
Bob<br>
<br>
<br>
<br>
<br>
Alain Spineux wrote:
<blockquote
cite="mid:71fe4e760711161650j5b1841e5ic99e438c3d34160f@mail.gmail.com"
type="cite">
<pre wrap="">On Nov 17, 2007 1:25 AM, Bob Metelsky <a class="moz-txt-link-rfc2396E" href="mailto:bobmetelsky@comcast.net"><bobmetelsky@comcast.net></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hi Im a little perplexed by this situation
I have centos 4.5 installed on 2 pcs - each with 2 network cards
machine 1
eth0 Link encap:Ethernet HWaddr 00:14:2A:6B:C8:CC
inet addr:10.54.7.2 Bcast:10.54.7.255 Mask:255.255.255.0
eth1 Link encap:Ethernet HWaddr 00:11:50:9B:A2:90
inet addr:10.54.0.2 Bcast:10.54.0.255 Mask:255.255.255.0
machine 2
eth0 Link encap:Ethernet HWaddr 00:14:2A:69:4C:47
inet addr:10.54.7.3 Bcast:10.54.7.255 Mask:255.255.255.0
eth1 Link encap:Ethernet HWaddr 00:11:50:9B:A5:0A
inet addr:10.54.0.3 Bcast:10.54.0.255 Mask:255.255.255.0
machine 1 & 2 can ping each other on either subnets
machine 3 (windows)...
C:\>ipconfig
Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 10.54.7.16
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.54.7.1
cant ping anything on the 10.54.0 subnet, nor does that subnet show up
ip using a port scanner...
C:\>ping 10.54.0.2
Pinging 10.54.0.2 with 32 bytes of data:
Request timed out.
Request timed out.
C:\>ping 10.54.7.2
Pinging 10.54.7.2 with 32 bytes of data:
Reply from 10.54.7.2: bytes=32 time<1ms TTL=64
Reply from 10.54.7.2: bytes=32 time<1ms TTL=64
Any ideas why this is happening? I dont have a firewall on the 10.54
address,
</pre>
</blockquote>
<pre wrap=""><!---->
Yes ! You have to learn how works IP networks :-)
IP is wild and wide :-)
you can try this on your windows :
c:\> route add 10.54.0.2 MASK 255.255.255.255 10.54.7.2
OR
do the same on your router at 10.54.7.1
OR (depend on how your linux box is configured)
c:\> route add 10.54.0.0 MASK 255.255.255.0 10.54.7.16
But this should give you access on both 10.54.0.2 and 10.54.0.3
OR if routing is enable on 10.54.7.2
c:\> route add 10.54.0.0 MASK 255.255.255.0 10.54.7.2
should also give you access to both 10.54.0.2 and 10.54.0.3
You just have to understand the first one other are just to spread out
my IP knowledges.
Ops, the last one is sometime useful to configure a device on another
IP range, without reconfiguring your IP.
Like when unpacking a new router with IP 192.168.123.1
Regards.
</pre>
<blockquote type="cite">
<pre wrap="">Thanks
Bob
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</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
</blockquote>
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