05-18-2018 08:11 PM - edited 03-05-2019 10:28 AM
Hi All,
We have implemented one 50mbps open internet link where 3945 router and 3700 series switch is used for connectivity, while I am connecting my lan to wan interface its working , but when i am tring to access through switch its getting IP.but showing no internet access, I think i am missing any command kindly suggest why i am not able to access internet?
PFA router configuration
05-20-2018 12:26 PM
Also, can you ping 8.8.8.8.from the router with the source being the LAN interface ?
ping 8.8.8.8 source GigabitEthernet0/1
?
05-20-2018 12:47 PM
yes I am able to ping 8.8.8.8 source GigabitEthernet0/1 from router, but after changes on switch I am not getting ip for client, client getting apipa
05-20-2018 01:02 PM
Hello,
delete the entire Vlan 10 interface and the default gateway and use Vlan 1 for management instead:
interface Vlan10
description ** DATA VLAN **
ip address 192.168.10.2 255.255.255.0
ip helper-address 192.168.10.1
!
ip default-gateway 192.168.10.1
05-20-2018 01:18 PM
any another solution
05-20-2018 01:23 PM
Hello,
what does your network look like, do you have more or just that one switch ? I would default the config of the switch and start from scratch. I don't now what is missing, but configuring a switch should almost take no time at all...
05-20-2018 01:26 PM
I have only one router and one switch, Let me know what to do now
05-20-2018 01:32 PM
I assume that you are not on a live network ?
wr erase
to delete the configuration of the switch, then reload it, that will give you the switch with just the default configuration. Then configure just the link to the router and check if you get connectivity.
It is almost impossible to take you through all the steps remotely, do you have somebody available at the site who can assist you ?
05-20-2018 01:34 PM
I am available on site
05-20-2018 01:37 PM
wr erase
and then reload the switch, all ports will be in the default Vlan 1.
interface GigabitEthernet1/0/48
switchport mode access
!
interface GigabitEthernet1/1/2
des ***connected to dc router ***
switchport trunk encapsulation dot1q
switchport mode trunk
05-20-2018 01:39 PM
ok tring this, should I keep Ip routing as earlier ip routing was used for the same when link was live
05-20-2018 01:41 PM
No, don't enable ip routing, as that will turn your switch into a router...
05-20-2018 01:42 PM
ok will update u after reconfiguring in a while
05-19-2018 05:29 AM
Hi
As Reza mentioned could you please share the config, it could be DNS configured on the computer or NAT or default route misconfiguration.
05-19-2018 01:10 PM
05-19-2018 01:14 PM
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