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Add the Next.js web app and shared lesson content.
Move lessons out of the C sources into JSON so the web client can use the same material as the desktop app, and point release builds at desktop/. Co-authored-by: Cursor <cursoragent@cursor.com>
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FBukovina
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113 changed files with 25817 additions and 9 deletions
178
content/lessons/networks/unit-01.json
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178
content/lessons/networks/unit-01.json
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{
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"id": "unit-01",
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"subject": "networks",
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"number": 1,
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"titleKey": "net_unit1",
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"subtitleKey": "net_unit1_sub",
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"slides": [
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{
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"kicker": "1 / 4 • VLSM",
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"title": "Podsíťování sítí",
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"tip": "Tip: prefix /n = počet jedniček v masce. /24 = 255.255.255.0",
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"lines": [
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"Cíl: rozdělit jednu IP síť na menší podsítě podle počtu uzlů.",
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"Pamatuj si tři role adres v každém bloku:",
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"síťová = první adresa bloku",
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"broadcast = poslední adresa bloku",
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"uzly = vše mezi nimi (síť + 1 až broadcast − 1)"
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]
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},
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{
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"kicker": "2 / 4 • Velikosti",
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"title": "Jak velký blok potřebuji?",
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"tip": "Počet bitů pro uzly h = log₂(velikost), prefix = 32 − h",
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"lines": [
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"Pro X uzlů potřebuješ blok, do kterého se vejde X + 2 adresy (síť a broadcast).",
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"Velikost bloku je vždy mocnina dvojky – vezmi nejmenší blok, který je větší nebo roven X + 2.",
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"60 uzlů → 62 → blok 64 → /26",
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"30 uzlů → 32 → blok 32 → /27",
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"14 uzlů → 16 → blok 16 → /28",
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"7 uzlů → 9 → blok 16 → /28"
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]
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},
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{
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"kicker": "3 / 4 • Postup",
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"title": "Jak na to krok za krokem",
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"tip": null,
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"lines": [
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"1. Seřaď podsítě od největší po nejmenší.",
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"2. Pro každou najdi potřebný prefix.",
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"3. Začni na síťové adrese ze zadání.",
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"4. Rozsah podsítě = od síťové adresy po broadcast.",
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"5. Rozsah uzlů = síťová + 1 až broadcast − 1.",
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"6. Posuň se hned za broadcast a pokračuj dál."
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]
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},
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{
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"kicker": "4 / 4 • Příklad",
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"title": "Ukázka: 10.0.0.0/24",
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"tip": "A: 60 uzlů, B: 30, C: 14, D: 7",
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"lines": [
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"A → 10.0.0.0/26 uzly 10.0.0.1–10.0.0.62 broadcast 10.0.0.63",
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"B → 10.0.0.64/27 uzly 10.0.0.65–10.0.0.94 broadcast 10.0.0.95",
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"C → 10.0.0.96/28 uzly 10.0.0.97–10.0.0.110 broadcast 10.0.0.111",
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"D → 10.0.0.112/28 uzly 10.0.0.113–10.0.0.126 broadcast 10.0.0.127"
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]
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}
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],
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"tasks": [
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{
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"number": 1,
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"title": "VLSM",
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"subtitleKey": "net_ex1_title",
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"items": [
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{
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"kind": "subnet",
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"scenario": "1.) Síť má adresu 10.0.0.0/24. Rozdělte ji do podsítí s následujícími požadavky:\n\nPodsíť A: 60 uzlů\nPodsíť B: 30 uzlů\nPodsíť C: 14 uzlů\nPodsíť D: 7 uzlů",
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"solution": "A: 10.0.0.0/26 síť 10.0.0.0 uzly 10.0.0.1–10.0.0.62 broadcast 10.0.0.63\nB: 10.0.0.64/27 síť 10.0.0.64 uzly 10.0.0.65–10.0.0.94 broadcast 10.0.0.95\nC: 10.0.0.96/28 síť 10.0.0.96 uzly 10.0.0.97–10.0.0.110 broadcast 10.0.0.111\nD: 10.0.0.112/28 síť 10.0.0.112 uzly 10.0.0.113–10.0.0.126 broadcast 10.0.0.127",
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"blocks": [
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{
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"prefix": 26,
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"network": "10.0.0.0",
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"broadcast": "10.0.0.63",
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"firstHost": "10.0.0.1",
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"lastHost": "10.0.0.62"
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},
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{
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"prefix": 27,
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"network": "10.0.0.64",
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"broadcast": "10.0.0.95",
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"firstHost": "10.0.0.65",
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"lastHost": "10.0.0.94"
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},
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{
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"prefix": 28,
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"network": "10.0.0.96",
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"broadcast": "10.0.0.111",
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"firstHost": "10.0.0.97",
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"lastHost": "10.0.0.110"
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},
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{
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"prefix": 28,
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"network": "10.0.0.112",
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"broadcast": "10.0.0.127",
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"firstHost": "10.0.0.113",
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"lastHost": "10.0.0.126"
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}
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]
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},
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{
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"kind": "subnet",
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"scenario": "2.) Síť má adresu 172.16.0.0/16. Rozdělte ji do podsítí s následujícími požadavky:\n\nPodsíť A: 500 uzlů\nPodsíť B: 200 uzlů\nPodsíť C: 100 uzlů\nPodsíť D: 50 uzlů",
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"solution": "A: 172.16.0.0/23 síť 172.16.0.0 uzly 172.16.0.1–172.16.1.254 broadcast 172.16.1.255\nB: 172.16.2.0/24 síť 172.16.2.0 uzly 172.16.2.1–172.16.2.254 broadcast 172.16.2.255\nC: 172.16.3.0/25 síť 172.16.3.0 uzly 172.16.3.1–172.16.3.126 broadcast 172.16.3.127\nD: 172.16.3.128/26 síť 172.16.3.128 uzly 172.16.3.129–172.16.3.190 broadcast 172.16.3.191",
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"blocks": [
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{
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"prefix": 23,
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"network": "172.16.0.0",
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"broadcast": "172.16.1.255",
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"firstHost": "172.16.0.1",
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"lastHost": "172.16.1.254"
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},
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{
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"prefix": 24,
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"network": "172.16.2.0",
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"broadcast": "172.16.2.255",
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"firstHost": "172.16.2.1",
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"lastHost": "172.16.2.254"
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},
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{
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"prefix": 25,
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"network": "172.16.3.0",
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"broadcast": "172.16.3.127",
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"firstHost": "172.16.3.1",
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"lastHost": "172.16.3.126"
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},
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{
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"prefix": 26,
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"network": "172.16.3.128",
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"broadcast": "172.16.3.191",
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"firstHost": "172.16.3.129",
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"lastHost": "172.16.3.190"
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}
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]
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},
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{
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"kind": "subnet",
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"scenario": "3.) Síť má adresu 192.168.10.0/24. Rozdělte ji do podsítí s následujícími požadavky:\n\nPodsíť A: 120 uzlů\nPodsíť B: 70 uzlů\nPodsíť C: 35 uzlů\nPodsíť D: 15 uzlů",
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"solution": "Do sítě /24 se tyto požadavky nevejdou: A i B potřebují /25 (2 × 128 = 256 adres), na C a D už nezbude žádný blok. Při zachování velikostí by bylo nutné větší síť (např. /23).",
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"blocks": null
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},
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{
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"kind": "subnet",
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"scenario": "4.) Síť má adresu 192.168.2.0/25. Rozdělte ji do podsítí s následujícími požadavky:\n\nPodsíť A: 50 uzlů\nPodsíť B: 25 uzlů\nPodsíť C: 12 uzlů\nPodsíť D: 5 uzlů",
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"solution": "A: 192.168.2.0/26 síť 192.168.2.0 uzly 192.168.2.1–192.168.2.62 broadcast 192.168.2.63\nB: 192.168.2.64/27 síť 192.168.2.64 uzly 192.168.2.65–192.168.2.94 broadcast 192.168.2.95\nC: 192.168.2.96/28 síť 192.168.2.96 uzly 192.168.2.97–192.168.2.110 broadcast 192.168.2.111\nD: 192.168.2.112/28 síť 192.168.2.112 uzly 192.168.2.113–192.168.2.126 broadcast 192.168.2.127",
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"blocks": [
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{
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"prefix": 26,
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"network": "192.168.2.0",
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"broadcast": "192.168.2.63",
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"firstHost": "192.168.2.1",
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"lastHost": "192.168.2.62"
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},
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{
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"prefix": 27,
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"network": "192.168.2.64",
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"broadcast": "192.168.2.95",
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"firstHost": "192.168.2.65",
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"lastHost": "192.168.2.94"
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},
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{
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"prefix": 28,
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"network": "192.168.2.96",
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"broadcast": "192.168.2.111",
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"firstHost": "192.168.2.97",
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"lastHost": "192.168.2.110"
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},
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{
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"prefix": 28,
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"network": "192.168.2.112",
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"broadcast": "192.168.2.127",
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"firstHost": "192.168.2.113",
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"lastHost": "192.168.2.126"
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}
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]
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}
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]
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}
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]
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}
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