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Satellite Routers

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A wheelhouse or vehicle cab with a compact router and a satellite terminal mounted side by side, status lights on, a laptop and phone connec

Satellite Routers

Satellite Routers: Control Airtime, Fail Over, Share Wi-Fi

A satellite terminal gets you a connection. A router decides what that connection is allowed to do, keeps it alive when one link drops, and puts Wi-Fi where the people are. This page explains the two very different jobs, and which brand does which.

Buy Peplink routersBuy RedPort optimizers

Why does a satellite link need its own router?

The same thing goes wrong on nearly every first satellite installation. The terminal comes online, someone connects a laptop, and within minutes a background process starts pulling a system update, a cloud folder starts syncing, and the airtime for the month is gone before anyone has sent an email. On a metered L-band service such as Inmarsat BGAN, FleetBroadband or Iridium Certus, the equipment did nothing wrong. Nobody told it what not to do.

That is the first job of a satellite router: a firewall that treats airtime as the scarce resource it is. Only the traffic you approve gets through. Everything else, from app-store refreshes to photo backups, is stopped at the router rather than billed to you afterwards.

The second job appears when the business depends on the connection. A vessel, a mobile command post or a remote work site rarely has one link. It has a Starlink terminal, one or two cellular SIMs, and often an L-band terminal as the last resort. A multi-WAN router watches all of them at once, moves traffic to whichever link is healthy, and can bond several links into one. Satmodo sells the two brands that do these jobs best: RedPort for narrowband optimisation and Peplink for multi-WAN failover and bonding.

Two brands, two very different jobs

Do not shop for a router first. Decide which problem you have, then the brand chooses itself.

A sailboat nav station with a small RedPort router next to a FleetBroadband or BGAN terminal, a tablet showing an email client.

RedPort: make a narrowband link usable

RedPort Optimizers sit between a metered satellite terminal or USB-connected satellite phone and your devices. They block every byte you did not ask for, compress email and web traffic, and let a smartphone place calls through the terminal. Built for sailors and field teams on Inmarsat, Thuraya and Iridium L-band services where each megabyte is paid for.

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A commercial vehicle or vessel roof showing a Starlink flat panel, a cellular dome antenna and an L-band antenna mounted together.

Peplink: fail over and bond broadband links

Peplink MAX routers take several WAN sources at once, typically Starlink, one or more cellular modems and a wired or L-band backup, and keep the network up when any of them fails. SpeedFusion can bond them into a single tunnel. The AP One access points then carry that network across a hull, a coach or a compound. This is the choice for fleets, vessels, public safety and remote operations.

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Close crop of a hand pointing at a wiring diagram or network sketch on a clipboard beside routers on a bench.

Not sure which? Start with the bill

If your satellite service is billed per megabyte, you need a RedPort Optimizer, and possibly nothing else. If your service is billed per month with a data pool or is effectively unmetered, as Starlink business plans are, you need a Peplink to keep it reliable and shared. Some vessels run both: Peplink for the broadband network, RedPort in front of the L-band terminal that only wakes when everything else is down.

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What a satellite firewall actually saves you

A standard laptop or phone generates traffic constantly, whether or not you touch it. Operating system updates, app refreshes, cloud photo libraries, mail clients polling every minute, telemetry, advertising. On a home connection this is invisible. On an L-band terminal it is the entire bill.

RedPort's approach is a whitelist. The router allows nothing by default, and you switch on the specific services you want, such as your email client, a weather download, or a messaging app. RedPort quotes email running through its compression at up to 20 times faster than a standard mail client, with airtime savings of up to 85 percent, and web pages loading three to five times faster through its proxy. Those are the manufacturer's figures for its own service; your saving depends on what you were sending before.

The consequence is simple. A crew that previously burned a month of airtime in a week can run a whole passage on the same allowance, because only email, GRIB weather files and position reports are going over the link. That is what an Optimizer is for, and it is why it belongs on any metered satellite terminal, not just the expensive ones.

A laptop screen showing a plain email client with a small satellite data terminal beside it on a chart table, low warm light.

Failover and bonding on a business satellite link

A Starlink business terminal gives a vessel or work site broadband speeds most of the time. It does not give them all of the time. Obstructions, weather, congestion and the occasional outage all happen, and a video call or a dispatch system does not care why. A multi-WAN router with a cellular modem behind it, and an L-band terminal behind that, means the network never drops even if one link does.

Peplink calls its version of this SpeedFusion. Hot Failover keeps sessions alive by moving traffic to a healthy link before the failed one has fully timed out. WAN Smoothing sends duplicate packets down two links so that a burst of packet loss on one is covered by the other, which is what keeps a voice call clean. Bandwidth Bonding combines links at the packet level so a single download uses all of them at once. Bonding needs a Peplink endpoint at the other end of the tunnel, either a FusionHub you host or Peplink's own SpeedFusion Connect service, and we will tell you which you need before you buy.

Not every customer needs bonding. A lone RV or a small survey crew usually wants plain failover: Starlink first, cellular when Starlink is blocked, and a firewall on the L-band terminal so it is never used by accident. That is a single-modem MAX router plus a RedPort in front of the L-band unit, not the most expensive box on the shelf.

Aerial view of a remote drilling or construction compound with a Starlink dish and a cellular mast on a site office roof.

How to choose a satellite router

Four questions settle it for almost everyone. Work through them in order.

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1. Is the satellite service metered by the megabyte?

Inmarsat BGAN and FleetBroadband, Iridium Certus data on standard plans, Thuraya IP and USB-tethered satellite phones all are. If yes, you need a RedPort Optimizer as a firewall regardless of anything else you buy. If your only link is Starlink on a business plan, skip RedPort and go straight to Peplink.

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2. How many links do you have, and how many must stay up?

One link and you need only a firewall or a simple Wi-Fi gateway. Two or more, with work that cannot stop, and you need a multi-WAN Peplink MAX with as many cellular modems as you have SIMs. Count the WAN ports you will actually plug into: each Starlink, each cellular carrier, each L-band terminal is one.

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3. Where does it live: fixed site, vehicle, vessel or a case?

A fixed site or a cabin can use indoor hardware. A vehicle needs E-Mark and vibration ratings, a wide DC input and GPS for fleet tracking, which is what the MAX Transit series is for. A mast or open deck needs an IP67 unit powered over a single Ethernet cable, which is the HD Dome. A team that moves site every week needs the PDX, a complete network in a transit case.

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4. How far does the Wi-Fi need to reach?

A router's own radio covers a cab or a cabin. A steel hull, a long coach or a compound of several buildings needs access points fed by Ethernet from the router. The AP One range covers this, from a ceiling unit for an office to a DIN-rail Rugged unit for an engine room or a bus. Plan the access points with the router, not after the fact.

Where satellite routers earn their keep

The same hardware solves different problems in different places. Find the situation closest to yours.

Helmsman at a navigation display in a wheelhouse, tablet and phone in a holder nearby, open water ahead.

Vessels: sail, fishing and commercial

Starlink on deck, cellular near the coast, FleetBroadband or Certus as the safety fallback, and Wi-Fi from the wheelhouse to the crew mess. A Peplink MAX or HD Dome runs the network, AP One units reach through steel, and a RedPort Optimizer sits in front of the L-band terminal so it never bills for background traffic. Sailors on a single L-band terminal often need only the Optimizer.

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Row of trucks or a coach at a depot at dusk, roof-mounted antennas visible.

Fleets, RVs and overland vehicles

A MAX Transit or MAX BR1 in the vehicle, cellular SIMs from more than one carrier, Starlink on the roof, and GPS reporting back to InControl so dispatch knows where every unit is. Overlanders and full-time RV travellers get the same hardware without the fleet dashboard.

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Emergency operations tent or trailer with laptops, a transit-case router open on a table, responders in high-visibility jackets.

Emergency response and public safety

A command post needs a network in minutes, not hours. The PDX arrives as one case with four cellular modems and Wi-Fi inside, takes a Starlink terminal on a WAN port, and hands out addresses to laptops, radios-over-IP and cameras. The Transit Duo Core supports FirstNet Band 14 for agencies on that network.

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Aerial photograph of a remote industrial site with site offices and a communications mast.

Remote sites: mining, energy, utilities

A camp or a well pad runs on Starlink with cellular where it exists, and an HD Dome on a mast pulls a signal the office cannot see. A MAX HD4 MBX or HD2 MBX gives the site office enough Ethernet ports and PoE to run cameras and access points without a separate switch.

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A van or cabin porch with a portable satellite terminal on a tripod and a person working on a laptop.

Remote work, cabins and expeditions

A cabin or a base camp with a single Starlink and a BGAN terminal for the days it is down: a small Peplink for the network and a RedPort Optimizer to protect the BGAN airtime. Expedition teams on Certus or BGAN alone take the Optimizer and nothing else.

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What pairs with a satellite router

A router is the middle of the system. These are the things it connects to, all sold on satmodo.com.

A Starlink business terminal for the broadband link. Peplink routers take the Starlink Ethernet output on a WAN port, and the Antenna MAX S puts a Starlink Mini, cellular and Wi-Fi antennas in one roof enclosure. Browse terminals at /buy/starlink.
An L-band terminal for the always-there backup: BGAN, FleetBroadband or Iridium Certus at /buy/satellite-internet. This is the link a RedPort Optimizer protects.
A satellite phone or hotspot for voice and messaging when nothing else is up, at /buy/satellite-phones-radios and /buy/hotspot-devices. An Iridium GO already has its own Wi-Fi and app firewall, so it does not need an Optimizer.
Cellular SIMs from at least two carriers if you rely on failover. Peplink MAX routers carry redundant SIM slots per modem for exactly this reason.
External antennas for cellular and GPS on a vehicle or vessel. Our help centre covers the Peplink MAX Antenna Duo setup and the Antenna MAX S.
PoE injectors or a PoE switch for HD Dome units and AP One access points that are powered over Ethernet.
Off-grid power that can carry a router and terminal through the night, at /off-grid-power.
A service plan for the satellite terminal itself. Airtime for BGAN, Certus and Starlink business is arranged by Satmodo alongside the hardware.

Routers and access points in stock

A representative spread across both brands. Every product page carries its own specification and price.

Peplink Pepwave MAX MBX Mini router — front view
Special offer
Peplink Pepwave MAX MBX Mini
$6,999.00
Peplink AP One AX Wi-Fi 6 access point — front view
Special offer
Peplink AP One AX
$389.00
Peplink MAX Transit Duo Core LTEA router — front view
Special offer
Peplink MAX-TST-DUO-CORE-LTEA-R-T-PRM MAX Transit Core
$1,199.00
Peplink MAX HD1 Dome IP67 outdoor cellular router — dome view
Special offer
Peplink MAX HD1 Dome IP67
$1,499.00
Peplink PDX LTEA portable deployable SD-WAN router — front view
Special offer
Peplink PDX LTEA
$14,999.00
Peplink Pepwave MAX BR1 M2M LTE router — front view
Special offer
Peplink Pepwave MAX BR1 M2M LTE
$399.00
RedPort Halo long-range Wi-Fi extender system — kit contents
Special offer
Redport Halo WiFi Extender System
$445.00

Who does not need a satellite router

If your only satellite device is a handheld phone used for calls and texts, you do not need any of this. If you carry an Iridium GO or GO exec, the hotspot already has a Wi-Fi radio and its own app-based control of what goes over the link, so a RedPort Optimizer adds nothing. If you run one Starlink at a fixed site and use the router Starlink supplies, you have a working network already; a Peplink only earns its place when you add a second link or need remote management of many units.

Be honest about scale too. A four-modem HD4 MBX in a single sailboat is money spent on ports that will never be plugged in. A single-modem MAX BR1 or Transit Core with a Starlink on the WAN port does the same failover job at that scale. Tell us how many links and how many users and we will size it.

Sizing a network for a vessel, fleet or site?

Send us the links you have, the number of users and where the equipment will live. Satmodo specialists have configured Peplink and RedPort systems on everything from a single cruising sailboat to multi-vehicle public safety fleets, and we will tell you which box fits and which is overkill.

Call (800) 279-2366

Keep reading

Frequently asked questions

What does a satellite router do that the terminal's own router does not?
It controls what traffic is allowed onto the satellite link and what happens when that link fails. A terminal's built-in router simply passes everything through. A RedPort Optimizer blocks background traffic and compresses what is left; a Peplink watches several links and moves traffic between them so the network stays up.
Do I need a RedPort or a Peplink?
RedPort if your satellite service is billed per megabyte and you want to stop background data from eating it. Peplink if you have more than one internet source, such as Starlink plus cellular, and need automatic failover, bonding or fleet management. Many vessels run both: Peplink for the broadband network and a RedPort in front of the metered L-band terminal.
Will a satellite router make my connection faster?
A RedPort Optimizer makes email and web traffic feel faster on a narrowband link by compressing it and stopping other traffic from competing; RedPort quotes email up to 20 times faster through its service. A Peplink with SpeedFusion bonding can combine several links so a single download uses all of them at once, but it cannot make one slow link faster on its own.
Can a Peplink router bond Starlink with cellular?
Yes. Starlink connects to a Peplink WAN port over Ethernet and is treated like any other WAN. SpeedFusion can then fail over, smooth or bond it with the router's cellular modems. Bonding requires a SpeedFusion endpoint on the far side, either Peplink's SpeedFusion Connect service or a FusionHub you host, which we can set up with you.
Does a RedPort Optimizer work with an Iridium GO?
It is not needed with an Iridium GO. The GO already has a Wi-Fi hotspot and only passes traffic from its own approved apps, which is the job an Optimizer would otherwise do. RedPort Optimizers are for terminals that hand you a raw Ethernet or USB data connection: Inmarsat BGAN and FleetBroadband, Iridium Certus, Thuraya IP, and USB-tethered handsets such as the Iridium 9555 and 9575.
What is the difference between failover and bonding?
Failover uses one link at a time and switches to another when the first fails. Bonding uses all links at once, splitting traffic at the packet level so their bandwidth adds up. Failover works with any Peplink router out of the box; bonding needs SpeedFusion and an endpoint on the far side of the tunnel.
How much data does background traffic really use on a satellite link?
Enough to empty a monthly L-band allowance in days. Operating system updates alone can run to several gigabytes, and mail clients, cloud backups and app refreshes run continuously. The precise figure depends on your devices, which is exactly why a whitelist firewall that allows nothing by default is the safe approach.
Which Peplink router is right for a boat?
For a cruising sailboat with Starlink and a cellular SIM, a single-modem MAX router such as the Transit Core is enough. For a yacht or commercial vessel that needs a cellular signal from a mast and Wi-Fi through a steel hull, an HD1 or HD2 Dome outside, a MAX or MBX router inside and AP One access points in the accommodation is the usual layout. Our Peplink page has a comparison table.
Can I manage routers in several vehicles from one place?
Yes. Peplink's InControl cloud shows every router in your fleet, its location from the built-in GPS, its link status and usage, and lets you push configuration changes remotely. This is the main reason fleets and public safety agencies standardise on Peplink.
Do these routers work with BGAN and FleetBroadband terminals?
Yes. Both terminal types present an Ethernet connection, which a RedPort Optimizer or a Peplink WAN port accepts. RedPort's compatibility list names Inmarsat BGAN, Fleet One, FleetBroadband and Fleet Xpress for its routing, voice and data functions. On a Peplink, the L-band terminal is normally set as the lowest-priority WAN so it is only used when everything else is down.
What is an IP67 rating and when do I need it?
IP67 means the enclosure is sealed against dust and survives temporary immersion in water. You need it for anything mounted outside: on a mast, a vehicle roof or an open deck. The Peplink HD1 Dome, HD2 Dome and HD2 IP67 carry it. Indoor MAX, MBX and AP One units do not, and should live inside a cab, cabin or cabinet.
Do I need separate Wi-Fi access points?
Only if the router's own radio cannot reach everyone. A router in a wheelhouse rarely covers a crew mess two steel decks down, and a router in a site office does not cover the yard. Peplink AP One access points connect to the router over Ethernet, are powered by PoE, and are managed from the same InControl dashboard.
Can I make phone calls through a satellite router?
With a RedPort Optimizer Voice, yes. It includes a PBX so smartphones on its Wi-Fi can place calls through a compatible Inmarsat, Thuraya or Iridium Certus terminal using the RedPort phone app, with up to four calls at once on most broadband terminals according to RedPort. Peplink routers carry voice as ordinary data; the quality then depends on the link and on WAN Smoothing.
Can I rent a satellite router instead of buying?
Satmodo rents satellite internet terminals and phones for short deployments; see /rental/satellite-internet. Router availability for rental varies by model and date, so call (800) 279-2366 with your dates and we will tell you what can go out with the terminal.
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Peplink AP One AC Mini wireless access point
Special offer
Peplink AP One AC Mini
$179.00
Peplink AP One Enterprise
Special offer
Peplink AP One Enterprise
$249.00
Peplink AP One AX Lite — access point front view
Special offer
Peplink AP One AX Lite
$299.00
Peplink AP One In-Wall access point — front view
Special offer
Peplink AP One In-Wall
$299.00
Peplink AP One Rugged
Special offer
Peplink AP One Rugged
$299.00
Peplink AP One AX Wi-Fi 6 access point — front view
Special offer
Peplink AP One AX
$389.00
Peplink Pepwave MAX BR1 M2M LTE router — front view
Special offer
Peplink Pepwave MAX BR1 M2M LTE
$399.00
Redport Halo WiFi Extender System
Special offer
Redport Halo WiFi Extender System
$445.00
Peplink AP Pro AC
Special offer
Peplink AP Pro AC
$699.00
Peplink MAX-TST-DUO-CORE-LTEA-R-T-PRM MAX Transit Core
Special offer
Peplink MAX-TST-DUO-CORE-LTEA-R-T-PRM MAX Transit Core
$1,199.00
Peplink MAX-TST-DUO-CORE-LTEA-R-T-PRM MAX Transit Core
Special offer
Peplink MAX-TST-DUO-CORE-LTEA-R-T-PRM MAX Transit Core
$1,199.00
Peplink MAX HD1 Dome IP67
Special offer
Peplink MAX HD1 Dome IP67
$1,499.00

Why a Satellite Router is Essential for Remote Data

Connecting a standard laptop or smartphone directly to a satellite feed without protection can lead to massive data bills and slow speeds. A dedicated satellite router solves these problems through three key functions:

Preventing Bill Shock with Robust Firewalling

Modern devices are constantly "talking" to the internet in the background. A satellite Wi-Fi router is pre-configured to block all non-essential traffic by default. It creates a "whitelist" environment where only the specific data you request—such as an email or a weather file—is allowed to pass through. This prevents a surprise operating system update from consuming your entire monthly data allowance in minutes, giving you total control over your airtime usage.

Data Compression for Faster Email and Weather

Speed is a luxury in the satellite world. These routers work hand-in-hand with specialized compression software (like XGate) to shrink email sizes and web pages before they travel over the satellite link. This compression technology can accelerate data transfer speeds by up to 5x, making it possible to send photos, download GRIB weather files for navigation, and manage emails even over low-bandwidth connections like handheld satellite phones.

Universal Compatibility and "Bring Your Own Device"

Satellite routers act as a universal bridge. They connect via USB or Ethernet to your satellite terminal (whether it is an Iridium, Globalstar, or Inmarsat device) and broadcast a local Wi-Fi signal. This allows you to use your favorite iPhone, Android, or laptop to access satellite services wirelessly. It eliminates the need for complex driver installations and cables, creating a seamless, user-friendly experience for everyone in your camp or on your vessel.

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