Sticky Ip Vs Static Ip

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sticky ip = static ip? | Velocity Reviews

sticky ip = static ip? | Velocity Reviews
Discussion in ‘Cisco’ started by jrefactors, Apr 14, 2005.
I have heard static IP and dynamic IP. I just heard someone saying
about sticky IP, and I have no idea what is that, and I couldn’t find
any useful information about sticky IP.
I want to ask if sticky IP is the same as static IP, that means the IP
address is not changed?
please advise. thanks!!
Look up port-security, sticky IPs exist there
Regards
Sticky IP is one that does not change EVERY time that a connection is
made but is not guaranteed to be the same indefinitely. I had a sticky
IP with Pipex and had the same IP address for about 18 months. It only
changed when I moved (house not ISP) and now have a dynamic address.
The address is most likely to change if you disconnect for quite a long
time (vague but depends upon ISP, the size of their address pool, number
of customers etc).
A sticky IP is one that is assigned by the methods used to assign
dynamic IP addresses. However, they assign you the same IP address
every time.
There isn’t any important distinction between static and sticky.
Often sticky addresses are assigned via PPPoE. The people who make a
big fuss over sticky are really complaining about PPPoE, although
there really isn’t any good reason to complain about that either.
doh, I meant mac’s you are on about IPs
/gone to sit in the corner
Well, there is. Static IP address persist over time. Stick IP address
persist as ling as the ISP chooses to let them. My IP address will
change if I switch my cable modem connection from my router to my
primary machine, even though both pieces of hardware have the same MAC
address. It may also change if my ISP modifies the signal distribution
configuration.
Unless you have need to contact your machine from outside your local
network. Some of us travel and have need to contact the home base on
occasion.
One way to resolve the issue, if you have need to, is to sign up for one
of the free domain name mapping services (e. g. ) and install a
client that keeps your name to IP address association up to date.
There’s one other important distinction if you are trying to run a
server on a “sticky” IP, especially a mail server. The reverse
lookup will probably indicate that the IP is dynamic, and so will
be listed in a number of widely-used block lists. Not a problem if
you route outbound email through your ISP, but a potential liability
if you’re trying to run a mail server on the cheap!
I’d like a router that would send a message to a specified email address
whenever its WAN IP changed.
Quite right. The static IP persists over time, until your ISP
changes it.
Right, but not different from static IPs. The different Tom sees
between static and sticky exists only in his imagination.
But that’s a dynamic IP. It is neither static nor are quite a few users on SBC dsl service, who have the SBC
static package (usually described as sticky IPs), who have correct
reverse DNS identifying their hostnames in a way that does not
suggest dynamic. Hmm, they even have whois records on ARIN for their
block of sticky IPs. The whois record does indicate that these
are part of a larger SBC block.
Sticky IPs are a term coined by non-Ameritech regions of SBC for a block
of static IPs routed through a single connecting PPPoE IP (Ameritech
has always done static adsl IPs that way). For example the PPPoE
connection is configured like dynamic, but based on the login, the same
block of static IPs are routed from the internet to that PPPoE IP.
Not sure how those people would refer to our sdsl connection at work where
WAN IP and default gateway of modem/router is unrelated to our /29 public
static IPs behind it. Our ISP may use that WAN IP as a gateway to our
subnet, but that is as transparent as normal internet routing to reach our
public static IPs.
I use and have an ADSL router. The canonical name for my
machine points to the new IP adress when the IP changes on my router (
every time router is restarted). I am using dnsupdate on my Mac to do
this:. So, not a mail message but you can
always access your machine which I assume is what you want.
I view the main distinction to be WHERE the address is configured. As a
static address, it would be configured on the workstation. As a sticky
address, the client would use dhcp and the server would assign that same
address everytime based on dhcp configuration. I have some microsoft RAS
users that require a static ip for a particular application. Instead of
having the user configure their RAS entry with the static address, I just
configure the user to get the same address. I’m sure you could accomplish
the same thing by mac address as well.
Jim
Sticky IP, is basically a database within a device that ensures returning
traffic is routed back to the sending device when load-balancing is in use.
e. g.
If 3 firewalls are used and traffic load balanced between them
It is important that connection based trafic such as TCP uses the same
firewall in both directions for a particular connection for it to function
correctly.
To achieve this a sticky IP database is set up in the device’s either side
of the F/W’s noting the source IP address of the packet along with the IP
address of the Firewall it was recieved from.
Return traffic where the destination IP address already exists in the
database as a source address will be delivered to the relevent firewall and
not in a load balance round robin fashion. IP destinations not in the
database will just use the round robin method to load balance.
This of course could be taken to higher layers than just layer 3 but would
possibly defeat the object as we want as little CPU time wasted on the
single device feeding the 3 firewalls, as it is the CPU usage on the
firewall that made us want to load share in the first instance.
see
for more details
regards
Toby
I have read here that most peoples interpretation of Sticky IP is a DHCP
allocated address that does not change, i. e. end user devices will accept an
IP address from the ISP but the ISP itself is using a static allocation, or
a generally static connection that can change dynamically under certain
conditions????
I have not seen this in use at configuration level (on Cisco routers), Does
it actually exist or is it just a conceptual name for this behaviour? (my
previous post shown below does however use Sticky IP in configuration on a
CSM module in a Cisco L3 switch)
I personally can not see the advantage of a service provider reserving an IP
address for a customer and then allocating it dynamically (apart from ease
of set up for the customers equipment) as surely this defeats the purpose of
DHCP in preserving IPv4 address space on the assumption that not all users
will be logged on so the ISP needs a smaller pool of addresses than the size
of it’s consumer base.
I am also dubious about the use of sticky where a customer has used DNS to
locate their IP address that has been stickily applied as the administration
involved every time it changed would be stupid. Why not just have a static
IP.
My last point is based on something I had not actually thought of before
this post. What impact is the use of always on Broadband having on the IPv4
address space? Previously home users had dial up DHCP allocated and due to
charging/time restraints were not on 24/7 so did not use an IP address when
offline. Broadbasnd in it’s basic sence is simular in that if a DSL modem is
used the IP address is allocated when the PC is on only. But with many
people using DSL/Routers that are never turned off then surely the IPv4
address space is taking a battering, If everyone used a router then we may
as well all have a static IP address.
Paste————–
My previous comments regarding sticky IP
So do sticky IP addresses.
It’s the same for static addresses.
Then your IP address is neither static nor sticky.
Maybe the term “sticky address” has a different meaning in cable
networks than in DSL networks. If not, then I wonder what it is that
you are sticky address will continue to be the same. There won’t be any
problem contacting it.
You are describing dynamic addresses, not sticky addresses.
In practice, for the DSL world, it is usually IP addresses assigned
during PPPoE negotiation, where the assigned IP does not change.
That’s only one of the purposes of DHCP.
A computer needs to know its IP address, gateway router address, DNS
server address, and perhaps other information. If you configure the
IP address directly in customer equipment, then you have to also
configure the other information. An ISP has more flexibility if that
information can be assigned dynamically. It allows network
reconfiguration without having to require customers to change their
what is usually called sticky IP, at least in the DSL world, you
will always get the same IP. Therefore there are no serious problems
in setting up DNS and reverse DNS for your hosts.
That’s unrelated to the static/sticky question.
I’m sure it increases pressure on the IPv4 space. But perhaps it
doesn’t increase it all that much. At least for home users, many
will want to be connected for much of the evening. You need enough
IP addresses to handle the maximum load.
If everybody turned off their equipment when they were not using it,
you would have lots of free IP addresses at 3 a. m., but you wouldn’t
free up very many at 8 p. m. It’s the peak load that counts for the
number of IPs really. The ISP still benefits from dynamic address assignment.
That way it can move a block of IPs from one region to another,
depending on where the load is. If everyone had static or sticky
addresses, you would have to give your users advanced notification of
IP address change before you could move blocks. And you would have
to deal with irate customers who don’t want to change.
The big difference is that you configure static IPs manually, while
sticky IPs are assigned automatically using a network protocol.
What makes them sticky is that the server remembers what address it gave
you last time you requested an IP, and makes an attempt to give you the
same one this time.
I think he’s seeing an artifact of the way DHCP works. When a DHCP
client requests an IP, it includes the IP it would like to have, which
is typically the last IP it had. If the IP is available, the server
will assign that IP to the client.
If the client doesn’t specify a particular IP in its request, the server
may remember the IP that it gave out to that MAC address last time, and
give it out again if it’s available.
So what’s probably happening when he switches from his router to his
primary machine, is that the machine is proposing a different IP than
the router had.
Speaking from not knowing any actual stats on this, I believe the pressure
on the IPv4 space is not what it once was thought to be. The rfc’s for
private address space and NAT has freed up a lot of addresses. Now,
companies with thousands of employees can accomplish their internal
networking with private addressing. Even ISP’s are using private addresses
for their equipment that serves the internet. I’m sure the creation of
broadband is now moving the trend back into the direction of using up more
addresses, but I believe the situation is not critical at this point. There
are still public blocks available if you can prove the need.
Just MHO,
If you have a static IP or block it is assigned to YOU by whoever is
your upstream. It is a contracted thing or should be. And it should not
change without consent or business interruptions such as the upstream
going out of business.
Dynamic means the IP can change at any time.
I and others I know use sticky to refer to dynamic IPs that seem to stay
the same for months on end. Here in central NC, TWC gives you an IP and
you usually keep it for months. Then it might change to another in your
subnet or I’ve even seen them reassign the area to a different /8.
At the other end Bellsouth changes IP addresses everytime you
authenticate via PPPoE. Or they used to, I don’t use them much anymore.
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What is a Static IP Address? - Definition from Techopedia

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What is a Static IP Address? – Definition from Techopedia

What Does Static Internet Protocol Address Mean?
A static Internet Protocol (IP) address (static IP address) is a permanent number assigned to a computer by an Internet service provider (ISP). A static IP address is also known as a fixed IP address or dedicated IP address, and is the opposite of a dynamic IP address. A computer with an assigned static IP address uses the same IP address when connecting to the IP addresses are useful for gaming, website hosting or Voice over Internet Protocol (VoIP) services. Speed and reliability are key advantages. Because a static address is constant, systems with static IP addresses are vulnerable to data mining and increased security risks.
Techopedia Explains Static Internet Protocol Address
An ISP is allocated a range of IP addresses. The ISP assigns each address to its networked computers via the Dynamic Host Configuration Protocol (DHCP) server, which is configured to allocate static IP addresses to specific computers. The addresses are used for network identification and communication. Allocation mechanisms vary, depending on platform, and include manually typing the IP address into the device or assigning it via a router. Unlimited IP address requirements were not considered when the Internet was first conceptualized. At that time, Internet Protocol version 4, based on 32-bit addressing (IPv4) allowed for 4. 2 billion unique addresses. Even then, ISPs approached static addressing conservatively by limiting static addresses to unused IP addresses to facilitate temporary IP, or dynamic IP, addressing to requesting DHCP the rapidly expanding use of IP-addressable devices, IPv4’s limitations became more apparent. The IPv6 protocol followed IPv4 and provided for 128-bit addressing for virtually unlimited IP IP address advantages include:Lower costsEmail server hosting capabilitiesEasy maintenanceIdeal for online gamingStatic IP addresses are particularly useful for events such as hosting a website. With a dynamic IP address, every time the address changes, the router won’t know which device in the network is the one hosting the site. A static IP will let your customers find you via DNS, instead. A static IP will make easier to set up and use a Virtual Private Network (VPN) since that address needs to be whitelisted as trusted just once. Video and audio communications can also be stabilized when using a Voice over Internet Protocol (VoIP). This is a particularly important aspect when a fast and stable connection is required, for example, for online gaming IP addresses do have their drawbacks, though. The most evident one is that an address that never changes is easier to be hacked as a malicious actor has much more time to identify and leverage network vulnerabilities. Also, once a cybercriminal has “hooked” that IP, they can continuously disrupt it via a cyberattack, like a prolonged DDoS attack. A static IP means that your physical location can be determined with ease, which is a good thing if you need prompt geo-localization, but also a downfall if an ill-intentioned user wants to find where you and your computer are located.
Static vs. Dynamic IP Addresses - Avast

Static vs. Dynamic IP Addresses – Avast

What is an IP address?
An IP address is a unique number assigned to every device on a TCP/IP network. Just like your physical home address lets people know where to send your birthday card, IP addresses identify computers and devices and lets them communicate with each other.
Internally, IP addresses are stored as numbers. While computers are happy to use numbers, humans prefer names. The Internet uses the Domain Name System (DNS) as an internet address book so you can use use words (such as) instead of numbers to navigate the internet and to address the devices on your network. Those devices might be anything that connects online: computers, TV, smart speakers, perhaps even your refrigerator. These days almost anything electronic in your home could have an IP address.
When you type a URL into your web browser, it uses DNS to look up the IP address for that domain. For example, if you type into your browser, DNS returns one of several IP addresses, including 77. 234. 41. 52.
There are two versions of IP addresses in common use: IPv4 and IPv6.
IPv4 has four hexadecimal numbers separated by periods – such as 192. 168. 0. 1 – while IPv6 has six hexadecimal numbers separated by colons – such as 2001:0db8:85a3:0000:0000:8a2e:0370:7334. There are almost 4. 3 billion IPv4 addresses, and we’ve used almost all of them. There are far more IPv6 addresses. We’ll not run out of IPv6 addresses anytime before the heat death of the universe.
What is a static IP address?
A static IP address is simply an address that doesn’t change. Once your device is assigned a static IP address, that number typically stays the same until the device is decommissioned or your network architecture changes. Static IP addresses generally are used by servers or other important equipment.
Static IP addresses are assigned by Internet Service Providers (ISPs). Your ISP may or may not allocate you a static IP address depending on the nature of your service agreement. We describe your options a little later, but for now assume that a static IP address adds to the cost of your ISP contract.
A static IP address may be IPv4 or IPv6; in this case the important quality is static. Some day, every bit of networked gear we have might have a unique static IPv6 address. We’re not there yet. For now, we usually use static IPv4 addresses for permanent addresses.
What is a dynamic IP address?
As the name suggests, dynamic IP addresses are subject to change, sometimes at a moment’s notice. Dynamic addresses are assigned, as needed, by Dynamic Host Configuration Protocol (DHCP) servers.
We use dynamic addresses because IPv4 doesn’t provide enough static IP addresses to go around. So, for example, a hotel probably has a static IP address, but each individual device within its rooms would have a dynamic IP address.
On the internet, your home or office may be assigned a dynamic IP address by your ISP’s DHCP server. Within your home or business network, the dynamic IP address for your devices — whether they are personal computers, smartphones, streaming media devices, tablet, what have you — are probably assigned by your network router. Dynamic IP is the standard used by and for consumer equipment.
Static vs. dynamic: Which is best for me?
There is no perfect IP address solution for all people and all occasions. Sometimes, it is better for a computer or device to use a static IP address; sometimes a dynamic IP address works best.
Deciding whether dynamic or static IP addresses are better for you also depends on the nature of the connection. A static IP address is more likely to be relevant for a business, while a dynamic IP address is appropriate for a home network.
Advantages of a static IP
There are numerous advantages to using a static IP address. Among these benefits are:
Better DNS support: Static IP addresses are much easier to set up and manage with DNS servers.
Server hosting: If you are hosting a web server, email server, or any other kind of server, having a static IP address makes it easier for customers to find you via DNS. Practically speaking that means it’s quicker for clients to get to your websites and services if they have a static IP address.
Convenient remote access: A static IP address makes it easier to work remotely using a Virtual Private Network (VPN) or other remote access programs.
More reliable communication: Static IP addresses make it easier to use Voice over Internet Protocol (VoIP) for teleconferencing or other voice and video communications.
More reliable geo-location services: With a static IP address, services can match the IP address with its physical location. For example, if you use a local weather service with a static IP address you’re more likely to get the weather report you need instead of the one for the next city over.
Disadvantages of a static IP
A static IP address isn’t ideal for all situations.
Static IPs are more hackable: With a static IP address, hackers know exactly where your server is on the Internet. That makes it easier for them to attack it. Avast Internet Security can help you in this regard.
Higher cost: ISPs generally charge more for static IP addresses, particularly with consumer ISP plans. Business ISP plans often include static IP, at least as an option, but they are more expensive than end-user plans; be sure to ask if it’s an extra cost.
Real-world security concerns: Anyone with the right network tools can find where you and your computers are located. VPNs, such as Avast SecureLine VPN, can help alleviate this concern by hiding your physical location.
Advantages of a dynamic IP
Dynamic IP addresses are easier to manage and cheaper to deploy than static IP addresses.
Easy, automatic configuration: With a dynamic IP address, the DHCP server automatically assigns the device the next available IP address. You don’t need to do a thing.
Lower fees: Typically, you save money by using a dynamic IP address.
Unlimited IP addressing: Dynamic addresses allow you to reuse IP addresses. Within a network, your devices are automatically configured with a fresh dynamic IP address as needed. So, for example, if you bring home a new computer you don’t have to manually delete the old one or assign it a number; the network or router takes care of it. That prevents confusing conflicts when two computers try to use the same IP address.
Potentially better security: With a dynamic IP address it’s harder for a potential attacker to target your networked equipment. You can also add to your security by obscuring your network address with a VPN.
Better physical security: It’s much harder for a snoop to find out exactly where you’re located. A VPN can help with this as well.
Disadvantages of a dynamic IP
Dynamic IP addresses are not ideal for all situations. They don’t work well for internet-facing services such as the web or email.
Unlikely to work well for hosted services: If you plan to host a website, email server, or so on, using a dynamic IP address may be troublesome. DNS doesn’t work well with dynamic IP addresses since the address is always changing. There are Dynamic DNS services that take care of this problem; however, they add expense and complexity. This can be a serious downside.
May limit remote access: Depending on your remote access software, your program may have trouble connecting if you use a dynamic IP address. That’s where VPN programs like Avast SecureLine VPN really shine.
Potentially more downtime: While it doesn’t happen often, sometimes your ISP is unable to assign you a dynamic IP address. This can interrupt your internet connection. For an individual consumer, that’s a temporary annoyance. It’s a much bigger problem if it knocks your company website offline.
Less accurate geolocation: A dynamic IP address can make your geo-location services fail because you can keep a dynamic address that no longer reflects your real-world location.
Conclusion
Typically, static IP addresses are best for businesses, which host their own websites and internet services. Static IP addresses also work well when you have remote workers logging into work via a VPN.
Dynamic IP addresses are usually fine for most consumers. They are cheaper and typically pose a bit less of a security risk.
Which type of IP address do you have?
Now that you understand the differences between static IP and dynamic IP, you may realize that it never mattered before which kind you are using. One quick way to find your IP address and its type is to use a free online tool like the HMA IP Checker.
Is it difficult to change your IP address?
If you get your internet service through an ISP or cable company, in most cases they assign you a dynamic IP address.
Within your own network, by default your devices are assigned dynamic IP addresses. It is usually not much of a problem to switch to a static IP address. You do this by going to your router’s interface, finding the device for which you want to assign a static IP address, and then assigning it one (usually by manually typing in a number). The details vary from router to router. On a network with an administrator, you need to have the system administrator do this for you.
How to protect your IP address, whether it’s static or dynamic
No matter whether your internet IP address is static or dynamic, your ISP — and tech-savvy bad guys — can tell approximately where you’re located and what you’re trying to do on the internet. You may want to hide your IP address — no matter what kind — from snoopers. A VPN, such as Avast SecureLine VPN, can help protect both your security and your privacy.

Frequently Asked Questions about sticky ip vs static ip

What does sticky IP mean?

A static Internet Protocol (IP) address (static IP address) is a permanent number assigned to a computer by an Internet service provider (ISP). A static IP address is also known as a fixed IP address or dedicated IP address, and is the opposite of a dynamic IP address.Apr 23, 2020

Is it better to have a static or dynamic IP?

Conclusion. Typically, static IP addresses are best for businesses, which host their own websites and internet services. Static IP addresses also work well when you have remote workers logging into work via a VPN. Dynamic IP addresses are usually fine for most consumers.Aug 23, 2021

Is static IP same as real IP?

Static means the IP address never changes as long as you stay with the same provider or same server. Dynamic means the IP address can change from time-to-time. Public means the IP address can be visited from any computer in the world. Private means the IP address can only be used by those on the same network.

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