Number of IP´s.

  • Thread starter Thread starter Raúl Gatón
  • Start date Start date
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Raúl Gatón

Dear collegues.
In our case, we have several IP´s to use. I took over as network admin and
now i would like to know why they are keeping these IP´s.
As far as I know, we should need this.

One IP for the router (1)
From the router, i can do NAT to redirect the traffic to the servers, it
means that using just one IP should be right to run our DNS, MAIL and WEB
servers (all of them will use different ports.

Is that right?
Thank you in advance
 
In
Razl Gatsn said:
Dear collegues.
In our case, we have several IP4s to use. I took over as network
admin and now i would like to know why they are keeping these IP4s.
As far as I know, we should need this.

One IP for the router (1)
From the router, i can do NAT to redirect the traffic to the servers,
it means that using just one IP should be right to run our DNS, MAIL
and WEB servers (all of them will use different ports.

Is that right?
Click to expand...

Yes, you can do it on one IP, and most inexpensive routers only support one
external IP.

That said, there may be other things to consider here, so giving a blanket
answer may not be right. It is likely that whomever manages the downstream
routers will only create routes to networks with a minimum number of IP
addresses.
 
What do you mean when you talk about "other things to consider"?
I am not native speaker and I couldn´t understand the last part of your
answer.
Thank you.
 
In
Razl Gatsn said:
What do you mean when you talk about "other things to consider"?
I am not native speaker and I couldn4t understand the last part of
your answer.
Click to expand...

It depends on the Network your router is connected to and how you connect to
it. You may only need one IP address, but it takes at least two IPs to get
you your one. Depending on the Network infrastructure, on a /30 network, you
could need at least four addresses to get one usable. It works a little
different if you have a PPPoE or PPP connection.
 
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