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No internet problem Cisco 4200 Series

vm05444
Level 1
Level 1
Fibre cable (media converter to ethernet) connect to Cisco 4200 series
router> router>en router#config t router(config)# router(config)#int gi0/0/0 router(config-if)#ip add 106.51.xx.xx 255.255.224.0 router(config-if)#no shutdown
router(config-if)#ip nat outside
router(config-if)#exit router(config)#ip route 0.0.0.0 0.0.0.0 106.51.64.xx router(config)#int gi0/0/1 anged state to up. router(config-if)#ip add 192.168.1.1 255.255.255.0 router(config-if)#no shutdown router(config-if)#ip nat inside router(config-if)#exit router(config)#ip dhcp pool LAN router(dhcp-config)#network 192.168.1.0 255.255.255.0 router(dhcp-config)#default-router 192.168.1.1 router(dhcp-config)#dns-server 8.8.8.8 8.8.4.4 router(dhcp-config)#exit router(config)#ip name-server 8.8.8.8 router(config)#access-list 1 permit 192.168.1.0 0.0.0.255 router(config)#ip nat inside source list 1 int gi0/0/0 overload router(config)#exit

Please give best solution
30 Replies 30

router#show ip interface brief
Interface IP-Address Status Protocol Description

gigabitethernet0/0/0 106.51.xx.xx up up port_to_Internet
gigabitethernet0/0/1 192.168.1.1 up up Port_to_LAN

router#show ip interface brief
Interface IP-Address Status Protocol Description

gigabitethernet0/0/0 106.51.37.56 up up port_to_Internet
gigabitethernet0/0/1 192.168.1.1 up up Port_to_LAN

ISP given ip address 106.51.37.56 subnet mask 255.255.224.0 Getway 106.51.64.x

ISP given ip address 106.51.37.56 subnet mask 255.255.224.0 Getway 106.51.64.x

As you mentioned if you connect Laptop with this configuration is this works  - personally i believe its typo on the Gateway provided.

106.51.63.xx  (you can try replacing with 64 with 63 and testi) - or contact ISP to validate the information correct.

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Thank you sir my configuration is correct or not, main Getway problem

Please confirm me 

This configuration use laptop work but router same configuration not working 

 

This configuration use laptop work but router same configuration not working 

 

Can you connect the laptop and post below information :

ipconfig /all

ping 106.51.64.x

ping 8.8.8.8

 

my configuration is correct or not,

 

Personally the information looks for me wrong, but can you provide above output connecting PC with the information IP.

 

Gateway of last resort is not set

 

This means router not taken that gateway information. when you issue command - (this might have accepted but given error when you see show ip route - since it is not reachable)

ip route 0.0.0.0 0.0.0.0 106.51.64.xx

 

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router#show arp
Protocol Address Age (min) Hardware Addr Type Interface Switchport
Internet 8.8.4.4 0 Incomplete ARPA gigabitethernet0/0/0 N/A
Internet 8.8.8.8 0 Incomplete ARPA gigabitethernet0/0/0 N/A
Internet 106.51.37.xx - 000a.ff01.05eb ARPA gigabitethernet0/0/0 N/A
Internet 106.51.72.xx 0 Incomplete ARPA gigabitethernet0/0/0 N/A
Internet 106.51.90.xx 0 Incomplete ARPA gigabitethernet0/0/0 N/A
Internet 167.94.146.xx 0 Incomplete ARPA gigabitethernet0/0/0 N/A
Internet 167.114.98.xx 0 Incomplete ARPA gigabitethernet0/0/0 N/A
Internet 192.168.31.1 - 000a.ff01.05ee ARPA gigabitethernet0/0/1 ---
Internet 192.168.31.4 0 18dd.f23f.60a3 ARPA gigabitethernet0/0/1 gigabitethernet0/0/1


router#ping 106.51.64.1


Press key (ctrl + shift + 6) interrupt it.
Sending 5, 76-byte ICMP Echos to 106.51.64.1 , timeout is 2 seconds:
!!!!!
Success rate is 100% (5/5). Round-trip min/avg/max = 0/0/1 m

router#show ip route
Gateway of last resort is not set

C 106.51.32.0/19 is directly connected, 00:03:04, gigabitethernet0/0/0
C 127.0.0.0/8 is directly connected, 00:03:23, lo0
C 192.168.1.0/24 is directly connected, 00:02:48, gigabitethernet0/0/1

C:\Users\Dell>ping 106.51.64.1

Pinging 106.51.64.1 with 32 bytes of data:
Reply from 106.51.64.1: bytes=32 time=2ms TTL=64
Reply from 106.51.64.1: bytes=32 time=1ms TTL=64
Reply from 106.51.64.1: bytes=32 time=3ms TTL=64
Reply from 106.51.64.1: bytes=32 time=2ms TTL=64

Ping statistics for 106.51.64.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 3ms, Average = 2ms

router#ping 106.51.64.1


Press key (ctrl + shift + 6) interrupt it.
Sending 5, 76-byte ICMP Echos to 106.51.64.1 , timeout is 2 seconds:
!!!!!
Success rate is 100% (5/5). Round-trip min/avg/max = 0/0/1 m

router#ping google.com

%Bad IP address or unknown hostname!

Network Adapter
Issues found
Windows can't communicate with the device or resource (pri... Detected
Contact your network administrator or Internet service provi... Completed
Issues found
< Windows can't communicate with the device or resource
(primary DNS server)
Detected
The device or resource is not responding to requests.
Contact your network administrator or Internet service
provider (ISP)
Completed
Windows can't communicate with the device or resource (primary DNS server).
If you are at home, contact your ISP. Otherwise, contact your network
administrator for assistance.

johnlloyd_13
Level 9
Level 9

hi,

are the 4200 interfaces up?

can you ping the ISP GW 106.51.64.xx?

check your ISP speed and duplex setting in their media converter and configure the same in your 4200 g0/0/0 interface.

you can also connect your laptop directly in the media converter RJ45 port, manually assign your laptop LAN settings, ping 8.8.8.8 and open a website.

IP: 106.51.xx.xx

SM: 255.255.224.0

DNS: 8.8.8.8

 

PC to router LAN area ping but ISP not ping 

router#ping google.com

%Bad IP address or unknown hostname!

router#ping 106.51.64.x


Press key (ctrl + shift + 6) interrupt it.
Sending 5, 76-byte ICMP Echos to 106.51.64.x , timeout is 2 seconds:
.....
Success rate is 0% (0/5).

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