{"id":526,"date":"2026-01-18T20:12:59","date_gmt":"2026-01-18T20:12:59","guid":{"rendered":"https:\/\/narhost.com\/blog\/?p=526"},"modified":"2026-09-11T15:06:32","modified_gmt":"2026-09-11T15:06:32","slug":"router-nedir-ve-ne-ise-yarar","status":"publish","type":"post","link":"https:\/\/narhost.com\/blog\/router-nedir-ve-ne-ise-yarar\/","title":{"rendered":"Router Nedir, Modem ile Fark\u0131 ve G\u00fcvenli A\u011f Ayarlar\u0131"},"content":{"rendered":"<div id=\"ai-ozet\" class=\"ai-box\">\n<p class=\"ai-box-title\">K\u0131saca \u00f6zet<\/p>\n<ul>\n<li>Router nedir sorusunun k\u0131sa cevab\u0131: farkl\u0131 a\u011flar aras\u0131nda veri paketlerini hedefe g\u00f6re ileten, ev ya da ofisteki yerel a\u011f\u0131 internete ba\u011flayan cihazd\u0131r.<\/li>\n<li>Modem hattaki sinyali dijital veriye \u00e7evirir, router bu verinin hangi cihaza gidece\u011fine karar verir; operat\u00f6r kutular\u0131 \u00e7o\u011funlukla ikisini tek g\u00f6vdede birle\u015ftirir.<\/li>\n<li>NAT tek genel IP adresinin arkas\u0131nda onlarca cihaz\u0131n \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flar, DHCP ise her cihaza 192.168.1.x gibi yerel bir adres da\u011f\u0131t\u0131r.<\/li>\n<li>2.4 GHz duvarlar\u0131 daha iyi ge\u00e7er ama \u00fc\u00e7 temiz kanal\u0131 vard\u0131r ve kalabal\u0131kt\u0131r; 5 GHz \u00e7ok daha h\u0131zl\u0131d\u0131r, menzili k\u0131sad\u0131r.<\/li>\n<li>Port y\u00f6nlendirme yerel a\u011fdaki bir cihaz\u0131 internete a\u00e7ar; gereksiz a\u00e7\u0131lan her port do\u011frudan sald\u0131r\u0131 y\u00fczeyine d\u00f6n\u00fc\u015f\u00fcr.<\/li>\n<li>\u0130lk g\u00fcn yap\u0131lacak d\u00f6rt i\u015f: varsay\u0131lan y\u00f6netim parolas\u0131n\u0131 de\u011fi\u015ftirmek, uzaktan y\u00f6netimi kapatmak, WPA2 veya WPA3 \u015fifrelemeye ge\u00e7mek, \u00fcr\u00fcn yaz\u0131l\u0131m\u0131n\u0131 g\u00fcncellemek.<\/li>\n<\/ul>\n<\/div>\n<p>\u0130nternet yava\u015flad\u0131\u011f\u0131nda ya da bir cihaz a\u011fa kat\u0131lamad\u0131\u011f\u0131nda ilk bak\u0131lan yer genelde modem oluyor. Oysa ev ve ofis a\u011f\u0131ndaki trafi\u011fi as\u0131l y\u00f6neten cihaz router. Kablosuz bant se\u00e7imi, yerel IP da\u011f\u0131t\u0131m\u0131, d\u0131\u015far\u0131ya a\u00e7\u0131lan portlar ve g\u00fcvenlik ayarlar\u0131n\u0131n hepsi burada duruyor. A\u015fa\u011f\u0131daki b\u00f6l\u00fcmlerde router nedir sorusunun teknik kar\u015f\u0131l\u0131\u011f\u0131n\u0131, modemle fark\u0131n\u0131 ve a\u011f\u0131n\u0131zda ger\u00e7ekten fark yaratan ayarlar\u0131 s\u0131rayla anlat\u0131yoruz.<\/p>\n<h2>Router nedir ve ne i\u015fe yarar?<\/h2>\n<p>Router nedir sorusunun en k\u0131sa cevab\u0131 \u015fu: iki ya da daha fazla a\u011f aras\u0131nda veri paketlerini do\u011fru hedefe ileten cihaz. Bilgisayar\u0131n\u0131z bir istek g\u00f6nderdi\u011finde paketin \u00fczerinde hedef IP adresi yazar. Router bu adrese bakar, kendi y\u00f6nlendirme tablosunda paketin hangi aray\u00fczden \u00e7\u0131kmas\u0131 gerekti\u011fini bulur ve oraya aktar\u0131r. Ev a\u011f\u0131nda karar \u00e7o\u011funlukla ikiye iner: paket ya yerel a\u011fdaki ba\u015fka bir cihaza gider ya da internete \u00e7\u0131kar.<\/p>\n<p>Y\u00f6nlendirme d\u0131\u015f\u0131nda \u00fc\u00e7 i\u015f daha yapar. Yerel a\u011fdaki cihazlara IP adresi da\u011f\u0131t\u0131r, tek genel IP adresini b\u00fct\u00fcn cihazlar aras\u0131nda payla\u015ft\u0131r\u0131r ve d\u0131\u015far\u0131dan gelen istekleri varsay\u0131lan olarak reddederek ilk filtre g\u00f6revini \u00fcstlenir. Kablosuz modellerde buna Wi-Fi eri\u015fim noktas\u0131 g\u00f6revi eklenir. Router nedir diye soruldu\u011funda, pratikte &#8220;a\u011f\u0131n trafik memuru ve ilk g\u00fcvenlik katman\u0131&#8221; demek yanl\u0131\u015f olmaz.<\/p>\n<figure class=\"nh-sema\"><img loading=\"lazy\" src=\"https:\/\/narhost.com\/blog\/wp-content\/uploads\/2026\/09\/router-nedir-ve-ne-ise-yarar-sema-narhost.webp\" alt=\"Router nedir sorusunun \u015femas\u0131 \u2014 modem fark\u0131, yerel IP da\u011f\u0131t\u0131m\u0131, bant se\u00e7imi ve g\u00fcvenlik ayarlar\u0131\" width=\"1200\" height=\"500\" loading=\"lazy\" decoding=\"async\"><figcaption>Router nedir sorusunun pratik kar\u015f\u0131l\u0131\u011f\u0131: \u00f6nce modem ayr\u0131m\u0131, sonra yerel adres da\u011f\u0131t\u0131m\u0131, ard\u0131ndan bant se\u00e7imi ve g\u00fcvenlik ayarlar\u0131.<\/figcaption><\/figure>\n<h2>Modem ile router aras\u0131ndaki fark<\/h2>\n<p>Modem, hattan gelen sinyali (fiber, VDSL ya da kablo) bilgisayarlar\u0131n anlad\u0131\u011f\u0131 dijital veriye \u00e7evirir. Router ise \u00e7evrilen verinin hangi cihaza gidece\u011fine karar verir. Modem tek ba\u015f\u0131na tek ba\u011flant\u0131 ta\u015f\u0131r; router olmadan evdeki telefon, televizyon ve diz\u00fcst\u00fc bilgisayar ayn\u0131 anda internete \u00e7\u0131kamaz.<\/p>\n<p>Router nedir sorusunun kar\u0131\u015fmas\u0131n\u0131n sebebi de bu: T\u00fcrkiye&#8217;de operat\u00f6rlerin verdi\u011fi kutular modem, router ve kablosuz eri\u015fim noktas\u0131n\u0131 tek g\u00f6vdede birle\u015ftiriyor. &#8220;Modem&#8221; dedi\u011fimiz cihaz asl\u0131nda \u00fc\u00e7 i\u015fi birden yap\u0131yor. Kendi cihaz\u0131n\u0131z\u0131 eklerseniz iki NAT katman\u0131 \u00fcst \u00fcste binebilir; operat\u00f6r kutusunu k\u00f6pr\u00fc (bridge) moduna almak bu sorunu ortadan kald\u0131r\u0131r.<\/p>\n<div class=\"highlight-box\">\n<p class=\"label\">Bilgi<\/p>\n<p>Sorunun modemde mi router&#8217;da m\u0131 oldu\u011funu anlaman\u0131n en h\u0131zl\u0131 yolu, \u00f6nce router&#8217;\u0131n yerel adresine sonra d\u0131\u015far\u0131daki bir adrese ping atmakt\u0131r. Yerel adres cevap verip d\u0131\u015f adres vermiyorsa sorun hattad\u0131r. Y\u00f6ntemi <a href=\"https:\/\/narhost.com\/blog\/ping-nedir-ve-nasil-atilir\/\" title=\"Ping nedir ve nas\u0131l at\u0131l\u0131r \u2014 ba\u011flant\u0131 testi ad\u0131mlar\u0131\">ping nedir ve nas\u0131l at\u0131l\u0131r<\/a> yaz\u0131s\u0131nda ad\u0131m ad\u0131m anlatt\u0131k.<\/p>\n<\/div>\n<h2>NAT ve yerel IP da\u011f\u0131t\u0131m\u0131 nas\u0131l \u00e7al\u0131\u015f\u0131r?<\/h2>\n<p>NAT (Network Address Translation), yerel a\u011fdaki \u00f6zel adresleri tek bir genel IP adresine \u00e7evirir. Router giden her ba\u011flant\u0131 i\u00e7in tablosuna bir sat\u0131r yazar: hangi i\u00e7 cihaz, hangi kaynak portu, hangi hedef. Cevap paketi d\u00f6nd\u00fc\u011f\u00fcnde bu sat\u0131ra bakarak paketi do\u011fru cihaza teslim eder. Adres \u00e7evirisinin resm\u00ee tan\u0131m\u0131 ve terimleri <a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc2663\" title=\"RFC 2663 \u2014 NAT terimleri ve \u00e7al\u0131\u015fma mant\u0131\u011f\u0131, IETF Datatracker\" target=\"_blank\" rel=\"noopener\">RFC 2663<\/a> belgesinde yer al\u0131r.<\/p>\n<p>Yerel adresler rastgele se\u00e7ilmez. <a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc1918\" title=\"RFC 1918 \u2014 \u00f6zel IP adres aral\u0131klar\u0131, IETF Datatracker\" target=\"_blank\" rel=\"noopener\">RFC 1918<\/a> \u00fc\u00e7 aral\u0131\u011f\u0131 \u00f6zel kullan\u0131ma ay\u0131rm\u0131\u015ft\u0131r: 10.0.0.0\/8, 172.16.0.0\/12 ve 192.168.0.0\/16. Ev cihazlar\u0131n\u0131n \u00e7o\u011fu 192.168.1.0\/24 havuzunu kullan\u0131r. DHCP servisi a\u011fa kat\u0131lan her cihaza bu havuzdan bir adres verir ve kira s\u00fcresi doldu\u011funda yeniler.<\/p>\n<p>Yaz\u0131c\u0131, a\u011f depolama \u00fcnitesi ya da kamera gibi adresi sabit kalmas\u0131 gereken cihazlara DHCP rezervasyonu tan\u0131mlay\u0131n. B\u00f6ylece cihaz her a\u00e7\u0131l\u0131\u015fta ayn\u0131 adresi al\u0131r ve ona bakan port y\u00f6nlendirme kurallar\u0131 bir yeniden ba\u015flatmadan sonra bo\u015fa d\u00fc\u015fmez.<\/p>\n<h2>2.4 GHz mi 5 GHz mi, hangisi ne zaman?<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u00d6zellik<\/th>\n<th>2.4 GHz<\/th>\n<th>5 GHz<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Menzil<\/td>\n<td>Uzun, bah\u00e7eye ve \u00fcst kata ula\u015f\u0131r<\/td>\n<td>K\u0131sa, birka\u00e7 odayla s\u0131n\u0131rl\u0131<\/td>\n<\/tr>\n<tr>\n<td>Duvar ge\u00e7i\u015fi<\/td>\n<td>\u0130yi<\/td>\n<td>Zay\u0131f, betonda h\u0131zla d\u00fc\u015fer<\/td>\n<\/tr>\n<tr>\n<td>H\u0131z<\/td>\n<td>D\u00fc\u015f\u00fck<\/td>\n<td>Y\u00fcksek<\/td>\n<\/tr>\n<tr>\n<td>Temiz kanal<\/td>\n<td>Yaln\u0131zca 3 kanal (1, 6, 11)<\/td>\n<td>\u00c7ok say\u0131da<\/td>\n<\/tr>\n<tr>\n<td>Uygun cihaz<\/td>\n<td>Kamera, yaz\u0131c\u0131, ak\u0131ll\u0131 ev cihazlar\u0131<\/td>\n<td>Diz\u00fcst\u00fc, telefon, video g\u00f6r\u00fc\u015fme<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>2.4 GHz band\u0131 uzun dalga boyu sayesinde duvarlar\u0131 daha iyi ge\u00e7er, ama \u00e7ak\u0131\u015fmadan kullan\u0131labilen yaln\u0131zca \u00fc\u00e7 kanal\u0131 vard\u0131r. Apartmanlarda onlarca kom\u015fu a\u011f ayn\u0131 \u00fc\u00e7 kanal\u0131 payla\u015ft\u0131\u011f\u0131 i\u00e7in gecikme y\u00fckselir ve ba\u011flant\u0131 kesik kesik hissedilir. 5 GHz&#8217;de kanal say\u0131s\u0131 \u00e7ok daha fazlad\u0131r, kalabal\u0131k nadiren sorun olur; buna kar\u015f\u0131l\u0131k sinyal duvardan ve zeminden sonra h\u0131zla zay\u0131flar.<\/p>\n<p>Pratik kural basit: ayn\u0131 odadaki ya da bir duvar \u00f6tesindeki cihazlar\u0131 5 GHz&#8217;e, uzak odalardaki ve d\u0131\u015f mek\u00e2ndaki cihazlar\u0131 2.4 GHz&#8217;e al\u0131n. Kanal se\u00e7imini otomatik b\u0131rakmak \u00e7o\u011fu ev i\u00e7in yeterlidir. Kesintiler s\u00fcr\u00fcyorsa 2.4 GHz kanal\u0131n\u0131 elle 1, 6 veya 11&#8217;den birine sabitleyin.<\/p>\n<div class=\"senaryo-block\">\n<p class=\"label\">\u00d6rnek senaryo<\/p>\n<p>Alt\u0131 ki\u015filik bir mimarl\u0131k ofisi, \u00f6\u011fleden sonra yap\u0131lan video g\u00f6r\u00fc\u015fmelerinde donma ya\u015f\u0131yordu. Y\u00f6netim panelindeki ba\u011fl\u0131 cihaz listesine bak\u0131ld\u0131\u011f\u0131nda 2.4 GHz band\u0131nda 19 cihaz, 5 GHz band\u0131nda yaln\u0131zca 3 cihaz oldu\u011fu g\u00f6r\u00fcld\u00fc. Yaz\u0131c\u0131 ve kameralar 2.4 GHz&#8217;de b\u0131rak\u0131ld\u0131, diz\u00fcst\u00fc bilgisayarlar 5 GHz a\u011f\u0131na ta\u015f\u0131nd\u0131, 2.4 GHz kanal\u0131 otomatikten 11&#8217;e sabitlendi. Donma \u015fik\u00e2yeti ayn\u0131 hafta kapand\u0131 ve yeni bir cihaz sat\u0131n al\u0131nmad\u0131.<\/p>\n<\/div>\n<h2>Y\u00f6nlendirme tablosu ve port y\u00f6nlendirme<\/h2>\n<p>Y\u00f6nlendirme tablosu, router&#8217;\u0131n &#8220;hangi hedef hangi kap\u0131dan \u00e7\u0131kar&#8221; defteridir. Ev cihazlar\u0131nda iki sat\u0131r i\u015f g\u00f6r\u00fcr: yerel a\u011f i\u00e7in do\u011frudan aray\u00fcz, geri kalan her \u015fey i\u00e7in varsay\u0131lan a\u011f ge\u00e7idi. Kurumsal a\u011flarda bu deftere VPN t\u00fcnelleri, yedek hat ve statik rotalar eklenir; trafik hangi sat\u0131ra uyuyorsa oradan \u00e7\u0131kar.<\/p>\n<p>Port y\u00f6nlendirme ise d\u0131\u015far\u0131dan belirli bir porta gelen trafi\u011fi yerel a\u011fdaki tek bir cihaza aktar\u0131r. Evdeki kameray\u0131, a\u011f depolama \u00fcnitesini ya da bir oyun sunucusunu internete a\u00e7mak i\u00e7in kullan\u0131l\u0131r. NAT d\u0131\u015far\u0131dan gelen ba\u011flant\u0131y\u0131 varsay\u0131lan olarak reddetti\u011fi i\u00e7in, port y\u00f6nlendirme asl\u0131nda elle a\u00e7\u0131lan bir kap\u0131d\u0131r.<\/p>\n<div class=\"warn-box\">\n<p class=\"label\">Dikkat<\/p>\n<p>A\u00e7t\u0131\u011f\u0131n\u0131z her port internete bakan bir kap\u0131d\u0131r. Uzak masa\u00fcst\u00fc, SSH ya da veritaban\u0131 portlar\u0131n\u0131 do\u011frudan d\u0131\u015far\u0131 y\u00f6nlendirmek en s\u0131k istismar edilen hatalardan biridir; otomatik taray\u0131c\u0131lar bu portlar\u0131 dakikalar i\u00e7inde bulur. D\u0131\u015far\u0131dan eri\u015fmeniz gereken bir servis varsa port a\u00e7mak yerine \u015fifreli bir t\u00fcnel kurmak \u00e7ok daha g\u00fcvenlidir. Aradaki fark\u0131 <a href=\"https:\/\/narhost.com\/blog\/vpn-nedir\/\" title=\"VPN nedir \u2014 \u015fifreli t\u00fcnel ile port a\u00e7man\u0131n fark\u0131\">VPN nedir<\/a> yaz\u0131s\u0131nda kar\u015f\u0131la\u015ft\u0131rd\u0131k.<\/p>\n<\/div>\n<h2>Router g\u00fcvenli\u011fi i\u00e7in hangi ayarlar de\u011fi\u015fmeli?<\/h2>\n<p>Y\u00f6netim aray\u00fcz\u00fc a\u011f\u0131n\u0131z\u0131n anahtar\u0131d\u0131r. Cihazlar\u0131n varsay\u0131lan kullan\u0131c\u0131 ad\u0131 ve parolas\u0131 model model internette listelenir, bu y\u00fczden ilk i\u015f onu de\u011fi\u015ftirmektir. \u0130kinci i\u015f &#8220;uzaktan y\u00f6netim&#8221; ya da &#8220;WAN \u00fczerinden eri\u015fim&#8221; ayar\u0131n\u0131 kapatmak. Bu ayar a\u00e7\u0131kken y\u00f6netim paneli yaln\u0131zca size de\u011fil, t\u00fcm internete g\u00f6r\u00fcn\u00fcr.<\/p>\n<p>Kablosuz tarafta \u015fifreleme WPA2 ya da WPA3 olmal\u0131; WEP ve \u015fifresiz a\u011f art\u0131k kullan\u0131lmaz, WPS d\u00fc\u011fmesi de kapat\u0131l\u0131r. \u00dcr\u00fcn yaz\u0131l\u0131m\u0131 g\u00fcncellemesi en \u00e7ok atlanan maddedir. Router nedir sorusuna g\u00fcvenlik a\u00e7\u0131s\u0131ndan bakarsan\u0131z cevap de\u011fi\u015fir: i\u00e7inde k\u00fc\u00e7\u00fck bir i\u015fletim sistemi \u00e7al\u0131\u015fan, yamaya ihtiya\u00e7 duyan bir bilgisayard\u0131r. Bu mant\u0131\u011f\u0131 <a href=\"https:\/\/narhost.com\/blog\/isletim-sistemi-nedir\/\" title=\"\u0130\u015fletim sistemi nedir \u2014 cihaz yaz\u0131l\u0131m\u0131n\u0131n \u00e7al\u0131\u015fma mant\u0131\u011f\u0131\">i\u015fletim sistemi nedir<\/a> yaz\u0131s\u0131nda ayr\u0131nt\u0131l\u0131 ele ald\u0131k.<\/p>\n<p>Misafir a\u011f\u0131 da bir g\u00fcvenlik arac\u0131d\u0131r. Misafirleri ve ak\u0131ll\u0131 ev cihazlar\u0131n\u0131 ayr\u0131 bir kablosuz a\u011fa ald\u0131\u011f\u0131n\u0131zda, bunlardan biri ele ge\u00e7se bile ana a\u011fdaki bilgisayarlara, yaz\u0131c\u0131ya ve dosya payla\u015f\u0131mlar\u0131na ula\u015f\u0131lamaz.<\/p>\n<h2>Ev ve ofis a\u011f\u0131nda s\u0131k g\u00f6r\u00fclen sorunlar<\/h2>\n<table>\n<thead>\n<tr>\n<th>Belirti<\/th>\n<th>Olas\u0131 neden<\/th>\n<th>\u00c7\u00f6z\u00fcm<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Wi-Fi ba\u011fl\u0131, internet yok<\/td>\n<td>Hat kopuk ya da DNS cevap vermiyor<\/td>\n<td>Router&#8217;\u0131 yeniden ba\u015flat\u0131n, d\u0131\u015f bir adrese ping at\u0131n, DNS&#8217;i elle girin<\/td>\n<\/tr>\n<tr>\n<td>Ba\u011flant\u0131 kesik kesik<\/td>\n<td>2.4 GHz kanal kar\u0131\u015fmas\u0131<\/td>\n<td>Kanal\u0131 1, 6 veya 11&#8217;e sabitleyin, cihaz\u0131 5 GHz a\u011f\u0131na al\u0131n<\/td>\n<\/tr>\n<tr>\n<td>Baz\u0131 cihazlar IP alam\u0131yor<\/td>\n<td>DHCP havuzu dolu ya da adres \u00e7ak\u0131\u015fmas\u0131<\/td>\n<td>Havuzu geni\u015fletin, statik adresleri havuz d\u0131\u015f\u0131na ta\u015f\u0131y\u0131n<\/td>\n<\/tr>\n<tr>\n<td>Uzaktan eri\u015fim \u00e7al\u0131\u015fm\u0131yor<\/td>\n<td>Port y\u00f6nlendirme yanl\u0131\u015f i\u00e7 adrese bak\u0131yor<\/td>\n<td>Hedef cihaza DHCP rezervasyonu verin, kural\u0131 yeniden yaz\u0131n<\/td>\n<\/tr>\n<tr>\n<td>Uzak odada sinyal yok<\/td>\n<td>5 GHz menzili yetmiyor<\/td>\n<td>Cihaz\u0131 2.4 GHz&#8217;e al\u0131n ya da ikinci bir eri\u015fim noktas\u0131 ekleyin<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Taray\u0131c\u0131da zaman a\u015f\u0131m\u0131 hatas\u0131 g\u00f6r\u00fcyorsan\u0131z kayna\u011f\u0131 her zaman yerel a\u011f de\u011fildir; sunucu taraf\u0131, g\u00fcvenlik duvar\u0131 ya da DNS de ayn\u0131 hatay\u0131 \u00fcretir. Ayn\u0131 sayfa mobil veride a\u00e7\u0131l\u0131yorsa sorun yerel a\u011fdad\u0131r. Ay\u0131klama s\u0131ras\u0131n\u0131 <a href=\"https:\/\/narhost.com\/blog\/err_connection_timed_out-hatasi-nasil-cozulur\/\" title=\"ERR_CONNECTION_TIMED_OUT hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr \u2014 ad\u0131m ad\u0131m ay\u0131klama\">ERR_CONNECTION_TIMED_OUT hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr<\/a> yaz\u0131s\u0131nda ad\u0131m ad\u0131m bulabilirsiniz.<\/p>\n<div class=\"success-box\">\n<p class=\"label\">Sonu\u00e7<\/p>\n<p>Router nedir sorusunun pratik cevab\u0131, a\u011f\u0131n\u0131zdaki kararlar\u0131 veren cihaz oldu\u011fudur: paketi nereye g\u00f6nderece\u011fi, hangi cihaza hangi adresi verece\u011fi, d\u0131\u015far\u0131dan gelen iste\u011fi i\u00e7eri al\u0131p almayaca\u011f\u0131. H\u0131z \u015fik\u00e2yetlerinin \u00e7o\u011fu yeni donan\u0131m almadan bant ve kanal ayar\u0131yla \u00e7\u00f6z\u00fcl\u00fcr; g\u00fcvenlik sorunlar\u0131n\u0131n \u00e7o\u011fu ise varsay\u0131lan parola ve gereksiz a\u00e7\u0131k portla ba\u015flar.<\/p>\n<\/div>\n<h2>Router ayarlar\u0131 i\u00e7in kontrol listesi<\/h2>\n<ul class=\"kontrol-listesi\">\n<li>Y\u00f6netim aray\u00fcz\u00fcn\u00fcn varsay\u0131lan kullan\u0131c\u0131 ad\u0131n\u0131 ve parolas\u0131n\u0131 de\u011fi\u015ftirin.<\/li>\n<li>Uzaktan y\u00f6netimi (WAN eri\u015fimi) ve WPS&#8217;i kapat\u0131n.<\/li>\n<li>Kablosuz \u015fifrelemeyi WPA2 ya da WPA3 olarak se\u00e7in.<\/li>\n<li>\u00dcr\u00fcn yaz\u0131l\u0131m\u0131 g\u00fcncellemesi \u00e7\u0131km\u0131\u015f m\u0131, \u00fc\u00e7 ayda bir kontrol edin.<\/li>\n<li>Adresi sabit kalmas\u0131 gereken cihazlara DHCP rezervasyonu tan\u0131mlay\u0131n.<\/li>\n<li>A\u00e7\u0131k port y\u00f6nlendirme kurallar\u0131n\u0131 listeleyin, kullan\u0131lmayanlar\u0131 silin.<\/li>\n<li>Misafir a\u011f\u0131n\u0131 a\u00e7\u0131n, ak\u0131ll\u0131 ev cihazlar\u0131n\u0131 oraya ta\u015f\u0131y\u0131n.<\/li>\n<li>2.4 GHz kanal\u0131 kalabal\u0131ksa 1, 6 veya 11&#8217;e sabitleyin.<\/li>\n<\/ul>\n<div class=\"kb-faq\">\n<h2>S\u0131k\u00e7a sorulan sorular<\/h2>\n<h3>Router nedir, modem ile ayn\u0131 cihaz m\u0131?<\/h3>\n<p>Ayn\u0131 de\u011fildir. Modem hattaki sinyali dijital veriye \u00e7evirir, router bu verinin hangi cihaza gidece\u011fine karar verir ve yerel a\u011f\u0131 y\u00f6netir. Evlere da\u011f\u0131t\u0131lan kutular ikisini tek g\u00f6vdede birle\u015ftirdi\u011fi i\u00e7in ayr\u0131m g\u00fcnl\u00fck dilde kayboluyor.<\/p>\n<h3>Router&#8217;\u0131 yeniden ba\u015flatmak neden sorunlar\u0131n \u00e7o\u011funu \u00e7\u00f6z\u00fcyor?<\/h3>\n<p>Cihaz NAT tablosunu, DHCP kiralar\u0131n\u0131 ve DNS \u00f6nbelle\u011fini bellekte tutar. Bu tablolar zamanla \u015fi\u015fer ya da bozuk kay\u0131t biriktirir, yeniden ba\u015flatma hepsini s\u0131f\u0131rlar. Ayn\u0131 sorun her hafta d\u00f6n\u00fcyorsa altta \u00fcr\u00fcn yaz\u0131l\u0131m\u0131 hatas\u0131 ya da \u0131s\u0131nma vard\u0131r; o durumda yeniden ba\u015flatmak yaln\u0131zca zaman kazand\u0131r\u0131r.<\/p>\n<h3>Port y\u00f6nlendirme a\u00e7mak tehlikeli mi?<\/h3>\n<p>A\u00e7t\u0131\u011f\u0131n\u0131z port yaln\u0131zca size de\u011fil internetteki herkese a\u00e7\u0131l\u0131r. Hedef cihazda g\u00fcncel yaz\u0131l\u0131m ve g\u00fc\u00e7l\u00fc bir parola yoksa risk y\u00fcksektir. M\u00fcmk\u00fcnse port a\u00e7mak yerine \u015fifreli bir t\u00fcnel \u00fczerinden ba\u011flan\u0131n, kural kal\u0131c\u0131 olarak gerekmiyorsa i\u015finiz bitince silin.<\/p>\n<h3>Wi-Fi h\u0131z\u0131m d\u00fc\u015f\u00fck, yeni cihaz almam gerekir mi?<\/h3>\n<p>Genelde gerekmez. \u00d6nce band\u0131 ve kanal\u0131 kontrol edin, cihazlar\u0131 2.4 GHz ile 5 GHz aras\u0131nda dengeleyin, cihaz\u0131 dolap i\u00e7inden ve metal y\u00fczeylerin arkas\u0131ndan \u00e7\u0131kar\u0131n. Bu \u00fc\u00e7 ad\u0131m sonu\u00e7 vermiyorsa uzak b\u00f6lge i\u00e7in ikinci bir eri\u015fim noktas\u0131 d\u00fc\u015f\u00fcn\u00fclebilir.<\/p>\n<h3>Yerel IP adresim neden 192.168 ile ba\u015fl\u0131yor?<\/h3>\n<p>Bu aral\u0131k \u00f6zel kullan\u0131ma ayr\u0131lm\u0131\u015ft\u0131r ve internette y\u00f6nlendirilmez. Yerel a\u011fdaki cihazlar birbiriyle bu adresler \u00fczerinden konu\u015fur, d\u0131\u015far\u0131 \u00e7\u0131karken NAT hepsini tek genel IP adresine \u00e7evirir. Ayn\u0131 adreslerin binlerce evde kullan\u0131labilmesinin sebebi budur.<\/p>\n<\/div>\n<div class=\"cta-box\">\n<p class=\"label\">Narhost&#8217;ta<\/p>\n<p>Web hosting paketleri NVMe SSD disk, \u00fccretsiz SSL ve T\u00fcrk\u00e7e cPanel ile geliyor; mevcut sitenizi \u00fccretsiz ta\u015f\u0131yoruz.<\/p>\n<p><a class=\"cta-btn\" href=\"https:\/\/narhost.com\/web-hosting\" title=\"Narhost web hosting paketleri\">Web hosting paketlerini incele<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Router nedir sorusunun cevab\u0131, modemle aras\u0131ndaki fark, NAT ve DHCP mant\u0131\u011f\u0131, 2.4 GHz ile 5 GHz aras\u0131ndaki se\u00e7im, port y\u00f6nlendirmenin riski ve ev ile ofis a\u011f\u0131nda s\u0131k g\u00f6r\u00fclen sorunlar\u0131n \u00e7\u00f6z\u00fcm\u00fc.<\/p>\n","protected":false},"author":1,"featured_media":2325,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nedir"],"_links":{"self":[{"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/posts\/526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/comments?post=526"}],"version-history":[{"count":4,"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/posts\/526\/revisions"}],"predecessor-version":[{"id":2324,"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/posts\/526\/revisions\/2324"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/media\/2325"}],"wp:attachment":[{"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/media?parent=526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/categories?post=526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/narhost.com\/blog\/wp-json\/wp\/v2\/tags?post=526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}