Can't reach subinterfaces through ping

[bstevenson11]

Hi There,

I am using Boson Netsim to create this simulated environment.My configuration is below. I have also included an image for a visual. I am unable to copy and paste for some reason, so I apologize for the lack of information. 

My issue is I am unable to ping the ip address on both subinterfaces on Router3 and Router4. I can ping et0/0 on Router4 but not Et0/1.100 on Router4. Same goes for Router3. 

I have setup the default gateway on the switch and the ip helper-address on the subinterface, but have no luck. Please let me know what I am missing here, it is driving me crazy. 

Router 1:

Fa0/0 - (connected to Router4 Et0/0)

ip address 192.168.0.1 255.255.255.240

ip route 192.168.0.32 255.255.255.240 192.168.0.2 (router4)

ip route 10.0.0.64 255.255.255.192 10.0.0.3 (router3)

Fa0/1 (connected to Router3 Fa0/0)

ip address 10.0.0.1 255.255.255.192

Router 4:

Et0/0 - 192.168.0.2 255.255.255.240 

encapsulation dot1q 100

Et0/1.100 - 192.168.0.33 255.255.255.240

encapsulation dot1q 100

Ip helper-address 192.168.0.1 

Switch 2:

Int fa0/1 (connected to Et0/1.100) - 

Switchport mode trunk

switchport access vlan 100

int fa0/2 (connected to PC) - 

Switchport mode access

switchport access vlan 100

Int fa0/3 (connected to pc)-

Switchport mode access

switchport access vlan 100

ip default-gateway 192.168.0.33

Router3: 

int fa0/0 - Ip address 10.0.0.3 255.255.255.192

int fa0/1.200 - ip address 10.0.0.65 255.255.255.192

encapsulation dot1q 200

ip helper-address 10.0.0.1

IP route 192.168.0.0 255.255.255.240 10.0.0.1

Switch1:

Int fa0/1 -(Connected to PC)

Switchport mode access

switchport access vlan 200

Int fa0/2- (connected to Router3)

Switchport mode trunk

switchport access vlan 200

switchport trunk allowed vlan 200

IP default-gateway 10.0.0.65

[cofee]

This appears to be a duplicate thread. You never followed through the other discussion thread that you created few days ago.

https://supportforums.cisco.com/discussion/13352286/help-pinging-host-router-through-vlan

[bstevenson11]

Thanks for replying.

This isn't a duplicate threat. That thread was solved with a DG being added to the users computer. With this issue I am unable to communicate from PC4 for example, to Router4's fa0/0 or fa0/1. I am also unable to ping Router4 Eth0/1 from Router3. I can ping Eth0/0 just fine, but not Ether0/1. 

If you look at the Diagram Router1 can communicate full with everything. Just communication between Router4 and subinterface on Router3 and vice versa is not working. Router 4 can communication with Router3 fa0/0 just not Router3 fa0/1.200. Same goes for Router3. Router3 can communicate with Rotuer4 eth0/0, but not eth0/1.100.

Thanks 

[cofee]

I have made some changes to configuration, try it and let me know the results.

Make sure the end hosts are using following gateways:

vlan 100

default gateway - 192.168.0.33

vlan 200

default gateway - 

10.0.0.65

*******

Router 1:

int Fa0/0
ip address 192.168.0.1 255.255.255.240
no shut
!

ip route 192.168.0.32 255.255.255.240 192.168.0.2
ip route 10.0.0.64 255.255.255.192 10.0.0.3
!
int Fa0/1
ip address 10.0.0.1 255.255.255.192
no shut
!

Router 4:

int Et0/0
192.168.0.2 255.255.255.240 
no shut
!

int eth0/1
no shut
!

int Et0/1.100
192.168.0.33 255.255.255.240
encapsulation dot1q 100
Ip helper-address 192.168.0.1 
!

Switch 2:
Int fa0/1
switchport mode trunk
switchport encapsulation dot1q
no shut
!

int fa0/2
Switchport mode access
switchport access vlan 100
no shut
!

Int fa0/3
no shut
Switchport mode access
switchport access vlan 100

ip default-gateway 192.168.0.33

Router3: 
int fa0/0 -
ip address 10.0.0.3 255.255.255.192
no shut
!

int f0/1
no shut
!

int fa0/1.200
ip address 10.0.0.65 255.255.255.192
encapsulation dot1q 200
ip helper-address 10.0.0.1
!
IP route 192.168.0.0 255.255.0.0 10.0.0.1

Switch1:

Int fa0/1
Switchport mode access
switchport access vlan 200
!
Int fa0/2
Switchport mode trunk
switchport trunk encapsulation dot1q
no shut
!

IP default-gateway 10.0.0.65

[bstevenson11]

I found it was a flaw in the Boson Netsim 11 simulator. static routes by IP are not working at the moment, so I switched to using interfaces or EIGRP and everything worked. They are currently working on a fix. Caused me a bunch of headaches though lol

Thanks!

[cofee]

Good to know that you found the issue. Thanks for the update!