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NET-C0205 · Network Security & VPN

802.1X EAP Methods Compared

Pick one EAP method for an 802.1X network you administer, and do not weaken it to make a client connect.

Updated 25 October 2026 · Comparison

This is an original planning guide. It is not a vendor manual, an official standard, or legal advice. Example addresses use documentation ranges. Review every command before you paste it.

What this hour is for

EAP is the conversation inside 802.1X. Some methods need certificates. Some send a password inside a tunnel. The selector helps you name a method from the clients you actually have. It does not configure a switch or a server. A method you choose because it has no certificate is a choice you write, including what it exposes.

One WLAN or one wired VLAN you administer. Do not disable 802.1X to finish the comparison. A shared password written in the note is removed.

This is not a way around an authentication control, and it is not a certification.

The change you can finish

Apply nothing during the writing of the note. When the lab window opens, it is one change on the device named in the ticket. Read the draft, then the device, then decide.

Rollback is the file or the revision you saved first. You do not invent a rollback after the only copy is gone.

  1. Name the network you administer.
  2. List the clients that must connect.
  3. Pick one method they can all do.
  4. Write what a password method exposes.
  5. Do not disable 802.1X.
  6. Stop.

Mistakes that outlive the command

802.1X EAP Methods Compared goes wrong in a small set of ways. The list is here so the ticket can forbid them before the window.

Decisions to write down

One decision for 802.1X EAP Methods Compared: The network is yours. The clients can run the method. Secrets are absent. 802.1X stays on. And one method is chosen.

Checks before you call it done

Confirm this before you call the change done: The method is written. The client limit is written. No secret remains. Authentication was not disabled. And no switch was changed. If one of those fails, stop.

QuestionWhat you write
CertificatesWho issues them, if the method needs them.
Password methodsWhat is protected and what is not.
A client that cannot connectA later exception, not a disabled control.

Before you leave the device

802.1X EAP Methods Compared ends when the hostname on the device matches the hostname in the ticket. If it does not, you are on the wrong box. Stop. A command that succeeded on the wrong box is not progress.

The draft stays a draft until a person has read the names in it. A generator does not log into the device and does not know which interface is the uplink. You delete a line that names a device, a zone, or a prefix you did not write down.

0.0.0.0/0 is not kept because a sample included it. A source you can say is the source you keep. 192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24, and 2001:db8::/32 are documentation. They belong in the note. They are not prefixes you type onto a production device because they appeared in a draft.

prompt-for-this is a reminder that a secret is missing. It is not a password, a key, a community string, or a pre-shared key you save in the ticket or in git. The real secret stays in the store.

One change is the window. A VLAN and a routing protocol and a VPN do not share it. If two things move and the result is wrong, you will not know which one did it. The next feature waits for its own page.

If the same step fails twice, stop for the day. The failure is the result. Adding a forum command beside a half-applied config produces a device nobody can rebuild. Restore the copy you took first.

A second person reads the device name and the change aloud. If they cannot find them in the ticket, the note is not done. Silence is not agreement. Then leave the device alone.

This page is a planning guide. It is not a vendor manual, not an official standard, and not a permission to touch a network you do not administer. The pillar guide owns the wider design. This page owns one lab proof.

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