topic Re: PC in vlan unable to ping router in Switching

PC in vlan unable to ping router

Teoyucheng — Sun, 13 Sep 2020 17:25:15 GMT

I have done the subinterfaces encapsulation on the router, done the switchport access vlan, switchport mode access

but i am not too sure where to put the switchport mode trunk and i am still unable to ping the router any help is appreciated

Re: PC in vlan unable to ping router

Richard Burts — Sun, 13 Sep 2020 18:09:00 GMT

Your drawing shows information for r3 and r4. But shows only a single router. Is that significant?

If I interpret the drawing correctly the interface trunk should be FA0/1.

Re: PC in vlan unable to ping router

balaji.bandi — Sun, 13 Sep 2020 18:11:39 GMT

You need to configure the Trunk port connected to the router. (in your case as per the diagram fa 0/1)

still not working post the switch and router config ?

Re: PC in vlan unable to ping router

Teoyucheng — Sun, 13 Sep 2020 18:29:01 GMT

Im sorry but the R4 labeling is wrong it is supposed to be R3

Re: PC in vlan unable to ping router

Teoyucheng — Sun, 13 Sep 2020 18:31:18 GMT

It has already been trunked to Fa0/1

no service timestamps log datetime msec

no service timestamps debug datetime msec

no service password-encryption

hostname Switch

spanning-tree mode pvst

spanning-tree extend system-id

interface FastEthernet0/1

switchport mode trunk

interface FastEthernet0/2

switchport mode trunk

interface FastEthernet0/3

switchport mode trunk

interface FastEthernet0/4

interface FastEthernet0/5

interface FastEthernet0/6

interface FastEthernet0/7

interface FastEthernet0/8

interface GigabitEthernet0/1

ip address 172.16.70.1 255.255.252.0

duplex auto

speed auto

interface GigabitEthernet0/1.10

encapsulation dot1Q 10

ip address 172.16.10.1 255.255.252.0

interface GigabitEthernet0/1.20

encapsulation dot1Q 20

ip address 172.16.20.1 255.255.252.0

interface GigabitEthernet0/1.30

encapsulation dot1Q 30

ip address 172.16.30.1 255.255.252.0

interface GigabitEthernet0/1.90

encapsulation dot1Q 90

ip address 172.16.90.1 255.255.252.0

interface Serial0/0/0

no ip address

clock rate 2000000

shutdown

interface Serial0/0/1

no ip address

clock rate 2000000

shutdown

interface Vlan1

no ip address

shutdown

router ospf 1

log-adjacency-changes

network 172.16.8.0 0.0.3.255 area 0

network 172.16.20.0 0.0.3.255 area 0

network 172.16.28.0 0.0.3.255 area 0

network 172.16.88.0 0.0.3.255 area 0

network 172.16.68.0 0.0.3.255 area 0

Re: PC in vlan unable to ping router

Georg Pauwen — Sun, 13 Sep 2020 18:50:28 GMT

Hello,

post the zipped Packet Tracer project (.pkt) file.

Re: PC in vlan unable to ping router

balaji.bandi — Sun, 13 Sep 2020 18:56:48 GMT

if you like to gigabit interface with subinterface

interface GigabitEthernet0/1

no ip address 172.16.70.1 255.255.252.0

duplex auto

speed auto

no shutdown

create another subnet for VLAN 70 or 192.168.70.X subnet

Re: PC in vlan unable to ping router

Teoyucheng — Sun, 13 Sep 2020 19:06:37 GMT

Re: PC in vlan unable to ping router

Teoyucheng — Sun, 13 Sep 2020 19:08:45 GMT

I removed the ip and it still didnt work

Re: PC in vlan unable to ping router

Georg Pauwen — Sun, 13 Sep 2020 19:35:32 GMT

Which PC (which IP address) cannot ping which IP address on the router ? You have put an IP address on the physical interface of the router, which means that this is the Vlan 1 IP address. Typically, your switches have an IP address in Vlan 1 as well.I have added the management IP addresses to the Vlan 1 interfaces of the three switches (see project file attached).

Re: PC in vlan unable to ping router

Teoyucheng — Sun, 13 Sep 2020 20:52:39 GMT

PC0 172.16.10.2 should be able to ping the 172.16.10.1 on the r4. I am still unable to ping with the file u sent

Re: PC in vlan unable to ping router

Georg Pauwen — Sun, 13 Sep 2020 21:24:54 GMT

Hello,

the problem was that Vlan 10 did not exist on the switch connected to the router. I manually created the Vlan. All links between the switches and the router must be trunks. Working file attached.

Re: PC in vlan unable to ping router

Richard Burts — Sun, 13 Sep 2020 21:38:21 GMT

It sounds like @Georg Pauwen has got it. If problems persist please post the output of these commands on the switch

show vlan

show interface trunk

show interface status

Re: PC in vlan unable to ping router

Teoyucheng — Mon, 14 Sep 2020 04:06:25 GMT

It works now but can i ask whats the command to manually make the vlan?

Edit/ vlan (number)

Re: PC in vlan unable to ping router

Teoyucheng — Mon, 14 Sep 2020 04:06:52 GMT

The only issue right now is that PC0 and PC1 are in vlan 10 PC2,3,4 are in vlan 20 and when i switchport access vlan 20 the vlan 10 stops working

Edit/ Create vlan 10 and 20 on switch connected to router

Re: PC in vlan unable to ping router

Teoyucheng — Mon, 14 Sep 2020 04:07:33 GMT

Thanks guys the problem is fixed