routeros-firewall skillA
routeros-firewall is agent-read markdown (skill) from tikoci/routeros-skills: RouterOS firewall filter, NAT, mangle, and address-list configuration. Use when: writing firewall rules in RouterOS, configuring NAT, setting up address-lists or interface-lists, writing idempotent firewall scripts, configuring DNS redirect or port forwarding, or when the user mentions /ip/firewall, chain=forward, chain=input, connection-state, address-list, interface-list, or layer7-protocol on MikroTik..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# RouterOS Firewall ## Rule Ordering — Sequential, Not Priority-Based Rules are evaluated **top-to-bottom** — first match wins. This is the biggest source of iptables confusion. - `place-before=0` inserts at the top; default `add` appends at the bottom - An `action=accept` rule must appear BEFORE any `action=drop` for the same traffic - **Non-terminal actions do NOT stop evaluation:** `action=add-src-to-address-list`, `action=add-dst-to-address-list`, `action=log`, and any rule with `passthrough=yes` continue to the next rule. A `drop` rule below an `add-src-to-address-list` will still fire. ```routeros # WRONG — drop fires before accept can match /ip/firewall/filter/add chain=input action=drop /ip/firewall/filter/add chain=input src-address=10.0.0.1 action=accept # CORRECT — accept first, drop catches the rest /ip/firewall/filter/add chain=input src-address=10.0.0.1 action=accept place-before=0 /ip/firewall/filter/add chain=input action=drop ``` ## Address-Lists as Dynamic Selectors LLMs rarely suggest this pattern — they write one rule per IP address instead. Address-lists scale to hundreds of IPs with a single firewall rule. ```routeros …
Read the whole file at its exact version.
How to install
mdr add tikoci/routeros-skills/routeros-firewall@git:20260626.5284858mdr add tikoci/routeros-skills/routeros-firewall@sha256:4ada00c81fa09c6fPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_tyld77pidydhr2wr)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260626.5284858 latest | 2026-06-26 | 5284858 | 7,484 B | A | view · diff |
| git:20260507.2ea4c62 | 2026-05-07 | 2ea4c62 | 7,476 B | A | view · diff |
| git:20260507.51a982c | 2026-05-07 | 51a982c | 7,434 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7484 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
tikoci/routeros-skills · 64 stars · license MIT · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tyld77pidydhr2wr GET https://markdownregistry.com/api/v1/resolve?ref=tikoci/routeros-skills/routeros-firewall GET https://markdownregistry.com/api/v1/blob/4ada00c81fa09c6f9a86c52f062e5107a10c8e858685b17354afd637c2b9d646
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.