[34647] in North American Network Operators' Group
RE: cablemodems and voip
daemon@ATHENA.MIT.EDU (Chris Kleban)
Thu Feb 15 14:15:23 2001
From: "Chris Kleban" <ckleban@sitesmith.com>
To: "Miguel Mata-Cardona" <mmata@sv.cciglobal.net>, <nanog@merit.edu>
Date: Thu, 15 Feb 2001 13:58:56 -0500
Message-ID: <ECEMKGLKOIOOAAOFGFCBCEGFCCAA.ckleban@sitesmith.com>
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Something that acts like an arp proxy on your end might do the trick.
chris kleban
-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of
Miguel Mata-Cardona
Sent: Thursday, February 15, 2001 1:19 PM
To: nanog@merit.edu
Subject: cablemodems and voip
Hi, I've been following this list quite a while, I'm a little off topic
but in the need of serious help. You can mail me direct all your help and
I'll post a summary at the end. thanks in advance.
-----------------------------------------------
problem:
We are a cablemodem provider and have disabled the peer to peer options in
our CMTSs to avoid problems with NBT and directed broadcast to our
customers. The network has been split in many nodes around the city and each
node is as follows:
to other nodes
|
|
-------------
| router |
| 10.2.15.1 |
-------------
|
|
---------------
| cable modem |
| termination |
| system |
---------------
/\
/ \
/ \
/ \
me other
10.2.15.2 10.2.15.3
As you might guess, under this configuration "me" and "other" won't be
able to ping to each other. We have done some tests with linux setting
"route -net 10.2.15.0 netmask 255.255.255.0 gw 10.2.15.1" and it works but
it does not on win9x. We are looking for this solution because we are
deploying a VoIP to some customers on the same node.
The above solution, if possible under win9x, would bring a problem because
we are modifying the customer machine instead of our network but is feasible
solution anyway. Is there a way on doing this within our nodes? if not, is
there a way to modify or tweak the win9x routing table?
--------------------------
Miguel Mata-Cardona
CCI El Salvador
mmata@sv.cciglobal.net
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<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D614105818-15022001>Something that acts like an arp proxy on your =
end might=20
do the trick.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D614105818-15022001></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D614105818-15022001>chris=20
kleban</SPAN></FONT></DIV>
<BLOCKQUOTE style=3D"MARGIN-RIGHT: 0px">
<DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> =
owner-nanog@merit.edu=20
[mailto:owner-nanog@merit.edu]<B>On Behalf Of </B>Miguel=20
Mata-Cardona<BR><B>Sent:</B> Thursday, February 15, 2001 1:19 =
PM<BR><B>To:</B>=20
nanog@merit.edu<BR><B>Subject:</B> cablemodems and=20
voip<BR><BR></DIV></FONT>Hi, I've been following this list quite a =
while, I'm=20
a little off topic but in the need of serious help. You can mail me =
direct all=20
your help and I'll post a summary at the end. thanks in=20
=
advance.<BR><BR>-----------------------------------------------<BR>proble=
m:<BR><BR>We=20
are a cablemodem provider and have disabled the peer to peer options =
in our=20
CMTSs to avoid problems with NBT and directed broadcast to our =
customers. The=20
network has been split in many nodes around the city and each node is =
as=20
follows:<BR><BR>to other nodes<BR>|<BR>|<BR>-------------<BR>| router =
|<BR>|=20
10.2.15.1 |<BR>-------------<BR>|<BR>|<BR>---------------<BR>| cable =
modem=20
|<BR>| termination |<BR>| system |<BR>---------------<BR>/\<BR>/ =
\<BR>/ \<BR>/=20
\<BR>me other<BR>10.2.15.2 10.2.15.3<BR><BR>As you might guess, under =
this=20
configuration "me" and "other" won't be able to ping to each other. We =
have=20
done some tests with linux setting "route -net 10.2.15.0 netmask =
255.255.255.0=20
gw 10.2.15.1" and it works but it does not on win9x. We are looking =
for this=20
solution because we are deploying a VoIP to some customers on the same =
node.<BR><BR>The above solution, if possible under win9x, would bring =
a=20
problem because we are modifying the customer machine instead of our =
network=20
but is feasible solution anyway. Is there a way on doing this within =
our=20
nodes? if not, is there a way to modify or tweak the win9x routing =
table?<?fontfamily><?param Arial><BR><PRE>--------------------------
Miguel Mata-Cardona
CCI El Salvador
mmata@sv.cciglobal.net
</PRE></BLOCKQUOTE></BODY></HTML>
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