Static IP Tutorial

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Static IP Tutorial

• June 25, 2009

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What is a Static IP?A static IP address is a
number (in the form of a dotted quad) that is
assigned to a device by an Internet service
provider (ISP) to be its permanent address on the
Internet. Computers use IP addresses to locate
and talk to each other on the Internet, much the
same way people use phone numbers to locate and
talk to one another on the telephone.
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Why do customers need static IPs?You run one
or more Web , Email or FTP server's directly on
your site that require external access from the
Internet. You run any other service or
'Application' that requires external access from
the Internet.
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Why do some customers need so many?
Customers may request larger blocks of IPs if
they have multiple servers or applications that
require access from the Internet.All requests
for multiple IPs should be validated.
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Static IP blocks for ALL Matrix and Fiber
customers
Subnet ID USABLE IPs
/24 254 Justification Required
/25 126 Justification Required
/26 63 Justification Required
/27 30 Justification Required
/28 14 Justification Required
/29 6
/30 1
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What equipment is required additional IPs
?For Knology Fiber and Matrix customers
requiring more than one (1) static IP address,
the customer will need to have in place a device
capable of Layer 3 routing. This device could be
a router, switch or firewall. Knology will route
all additional IPs to the WAN/Gateway interface
of that device via a single IP (/30). The
customer will then manage the additional subnet
provided via their layer 3 capable equipment.
Knology does NOT manage IPs beyond the
WAN/Gateway interface.
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Static IP blocks for Business cable modem
customers
Subnet ID USABLE IPs
/24 253 Justification Required
/25 125 Justification Required
/26 62 Justification Required
/27 29 Justification Required
/28 13 Justification Required
/29 5
/30 1
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What should be submitted for IP
justification ?1) Network diagram showing
your routers, switches, etc2) Server
information i.e., type of application, those who
will be accessing the application, will access be
only from internal network? external network?
both? etc3) What type of equipment will use the
additional IP addresses? i.e., mail server, web
server, etc4) Internal LAN - Will internal LAN
be assigned public or private IP addresses?
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Information needed to request IPs
(NEW)?1) Number of IPs requested by customer
Single Block2) Justification information if
required3) What type of equipment will use the
IP (router,switch)4) Brand and Model of
equipment5) Is the CPE Layer 3 capable?6) Has
IP routing been explained to the customer?
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Information needed to request IPs
(EXISTING)?1) Number of IPs requested by
customer Single Block2) Justification
information if required3) Customer type.4) What
type of equipment will use the IP
(router,switch)5) Brand and Model of
equipment6) Is the CPE Layer 3 capable?7) Has
IP routing been explained to the customer?8) A
new IP block may be assigned.
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Current ProjectsAssignment of routable IPs to
all business customers.Working toward the
ability to pre-assign IP addresses.
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Questions and Answers