197
Router(config)#ip dhcp pool t2
Router(dhcp-config)#network 192.168.20.0 255.255.255.0
Router(dhcp-config)#default-router 192.168.20.1
Router(dhcp-config)#do wr
Qurilgan topologiyani sozlashda xatolikka yo’l qo’yilgan.
Ushbu xatolik qayerda sodir
bo’lganligini toppish uchun har bir vlandagi bitta hostga static IP address va qolgan hostlarga
dinamik IP address berib chiqish kerak.
19.2-rasm. Vlan 10 va Vlan 20 dagi hostlarga static IP address berish
19.3-rasm. Vlan 10 dagi hostlar dinamik IP addresslarni sozlash
198
19.4-rasm. Vlan 10 dagi hostlar
dinamik IP address berish
Yuqoridagi rasmlardan ko’rish mumkinki, Vlan 10 dagi hostlar
ip address olgan lekin vlan
20 dagi hostlar ip address olmagan. Demak, vlan 20 nima uchun ip address olmaganligini aniqlab
ushbu xatolikni bartaraf etishimiz kerak.
Komutator va marshrutizator qurilmalarida muammolarni aniqlash uchun quyidagi
buyruqlardan foydalaniladi:
– Komutator uchun:
Show vlan
– vlanlarni ko’rish
Show vlan brief- Show
interface trunk-
Show ip arp-
Show mac-address-table-
Show ip interface brief show interface fastEthernet 0/1…
–
Marshrutizator uchun:
Show ip arp- Show dhcp lease-
Show ip dhcp pool- Show ip dhcp
binding-…
19.5-rasm. Show vlan
199
19.5-rasmdan Vlanlarda muammo yo’qligini ko’rish mumkin.
19.6-rasm.
Show interface trunk
19.6-rasmdan muammo interfaceda ekanligini ko’rish mumkin. Vlanlarni trunk portlarga
biriktirishda vlan 20 biriktirilmasdan qolib ketgan shuning uchun vlan 20
dagi hostlarda dhcp
xizmati ishlamagan. Topilgan muammo quyidagicha bartaraf etiladi:
Switch#
Switch#conf t
Switch(config)#interface fastEthernet 0/9
Switch(config-if)#switchport trunk allowed vlan add 20 Switch(config-if)#
Muammo bartaraf etilganligini testlab ko’rish kerak(17.7-rasm)
19.7-rasm Testlash natijalari
Dostları ilə paylaş: