Tak dnes jsem kone\u00c4\u008dn\u00c4\u009b nahodil router na balk\u0102\u0142n\u00c4\u009b a p\u0139\u0099ipojil do n\u00c4\u009bj nov\u0102\u0160 ant\u0102\u0160nky z i4. Celkem jsem za sito 19tku, sektorovku 180ti stupnovou s 10dbi, dalsi kartu x626 a pigtail dal p\u0139\u0099es 8000. V podstat\u00c4\u009b v\u0139\u0104echny svoje \u0102\u015fspory.<\/p>\n
No ale u\u0139\u017e te\u00c4\u008f jsem se za\u00c4\u008dal u\u00c4\u008dit dule\u0139\u017eit\u0102\u0160 v\u00c4\u009bci o routov\u0102\u0104ni. Moje \u0102\u015f\u0139\u017easn\u0102\u0104 routovac\u0102\u00ad tabulka toti\u0139\u017e po nahozen\u0102\u00ad v\u0139\u0104ech interfac\u0139\u017b vypadala n\u0102\u0104sledovn\u00c4\u009b:
\nnaxrouter:\/etc\/init.d# route -n
\nKernel IP routing table
\nDestination Gateway Genmask Flags Metric Ref Use Iface
\n10.27.72.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
\n10.27.8.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
\n10.27.4.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan1
\n0.0.0.0 10.27.4.1 0.0.0.0 UG 0 0 0 wlan1
\n0.0.0.0 10.27.72.1 0.0.0.0 UG 0 0 0 eth0<\/p>\n
Obzv\u0102\u0104\u0139\u0104\u0139\u013d 2 default GW sou moc fajn. Kdy\u0139\u017e jsem nastavil adresu wlan1 co\u0139\u017e je interface sm\u00c4\u009b\u0139\u0099uj\u0102\u00adc\u0102\u00ad na bluehillz, tak sice zmizel p\u0139\u0099edposledn\u0102\u00ad \u0139\u0099\u0102\u0104dek, ale to je snad jedin\u0102\u02dd kter\u0102\u02dd mi tam vyhovoval. Tak\u0139\u017ee si mus\u0102\u00adm pro za\u00c4\u008d\u0102\u0104tek pohr\u0102\u0104t s routov\u0102\u0104n\u0102\u00adm. Je to ale docela nebezpe\u00c4\u008dn\u0102\u0104 hra, obzvl\u0102\u0104\u0139\u0104\u0139\u013d pokud nesed\u0102\u00adte jako j\u0102\u0104 p\u0139\u0099\u0102\u00admo u toho po\u00c4\u008d\u0102\u00adta\u00c4\u008de, ale p\u0139\u0099istupujete k n\u00c4\u009bmu p\u0139\u0099es ssh. To pak kdy\u0139\u017e sma\u0139\u017eete nespr\u0102\u0104vnou routu nezb\u0102\u02ddv\u0102\u0104 nic jin\u0102\u0160ho, ne\u0139\u017e reset.<\/p>\n
Konecna tabulka ke ktery je treba se dopracovat je
\nnaxrouter:~# route -n
\nKernel IP routing table
\nDestination Gateway Genmask Flags Metric Ref Use Iface
\n10.27.72.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
\n10.27.8.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
\n10.27.4.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan1
\n0.0.0.0 10.27.4.1 0.0.0.0 UG 0 0 0 wlan1<\/p>\n
Syntaxe prikazu route vypada asi nasledovne:
\nroute del -net 10.27.72.0\/24 gw 10.27.72.1
\nroute add default gw 10.27.4.1<\/p>\n
ale nakonec jsem se to rozhodl udelat proste pres
\nnaxrouter:~# cat \/etc\/network\/interfaces
\n# \/etc\/network\/interfaces — configuration file for ifup(8), ifdown(8)<\/p>\n
# The loopback interfaces
\nauto lo
\niface lo inet loopback<\/p>\n
auto dummy0
\niface dummy0 inet static
\n address 10.27.0.8
\n netmask 255.255.255.255
\n broadcast 10.27.0.8<\/p>\n
# The first network card – this entry was created during the Debian installation
\n# (network, broadcast and gateway are optional)
\nauto eth0
\niface eth0 inet static
\n address 10.27.72.7
\n netmask 255.255.255.0
\n network 10.27.72.0
\n broadcast 10.27.72.255
\n# gateway 10.27.72.1<\/p>\n
auto wlan0
\niface wlan0 inet static
\n address 10.27.8.1
\n netmask 255.255.255.0
\n network 10.27.8.0
\n broadcast 10.27.8.255<\/p>\n
auto wlan1
\niface wlan1 inet static
\n address 10.27.4.120
\n netmask 255.255.255.0
\n network 10.27.4.0
\n broadcast 10.27.4.255
\n gateway 10.27.4.1<\/p>\n
Bohuzel jsem udelal chybu u posledniho auto, kde jsem sice opravil po cut&paste IP adresy, ale zapomel jsem prepsat 0 v auto wlan0 na 1 a dusledkem toho nabehl wlan1 s IP adresama eth0 a ten pro jistotu nenab\u00c4\u009bhl v\u0139\u017bbec. A co to pro mne kter\u0102\u02dd\u0139\u017eto sed\u00c4\u009bl u jin\u0102\u0160ho po\u00c4\u008d\u0102\u00adta\u00c4\u008de znamenalo? Vz\u0102\u00adt pod pa\u0139\u017e\u0102\u00ad monitor a vypravit se na dobrodru\u0139\u017enou cestu do \u00c4\u008derno\u00c4\u008dern\u0102\u0160 noci. Na\u0139\u0104t\u00c4\u009bst\u0102\u00ad jen na balkon. No a pak to u\u0139\u017e celkem jelo. Jen jsem je\u0139\u0104t\u00c4\u009b zjistil, \u0139\u017ee to \u0139\u0104patn\u00c4\u009b routuje z vnit\u0139\u0099n\u0102\u00adch po\u00c4\u008d\u0102\u00adta\u00c4\u008d\u0139\u017b m\u0102\u0160 s\u0102\u00adt\u00c4\u009b, ale LOC \u0139\u0104el u\u0139\u017e sp\u0102\u0104t a j\u0102\u0104 u\u0139\u017e p\u0139\u017bjdu taky.<\/p>\n