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Access switch cannot ping router interface gi0/0 10.10.2.1 through core switch routed port

adeebtaqui
Level 4
Level 4

Hi All,

 

Can you please share your knowledge to resolve my below connectivity 

 

My Access switch cannot  ping router interface gi0/0 10.10.2.1 through core switch routed port te1/018 10.10.2.2.

 

How to resolve this.

 

core config

int te1/0/18

no switchport

ip address 10.10.2.2 255.255.255.252

 

1 Accepted Solution

Accepted Solutions

My pc's from access switch are able to access internet.

 

I configured eigrp on core switch and router advertising their respective networks.

Default route on both were not providing internet access nor reachability between router and access switch so added eigrp

View solution in original post

7 Replies 7

Francesco Molino
VIP Alumni
VIP Alumni
Hi

Can you please share your config from core and access switch?

Thanks
Francesco
PS: Please don't forget to rate and select as validated answer if this answered your question

 

Router 4451 config:

 


no ip domain lookup

interface GigabitEthernet0/0/0
ip address 10.10.2.1 255.255.255.252
ip nat inside

!
interface GigabitEthernet0/0/1
ip address xxxxx 255.255.255.254
ip nat outside
!
!
ip access-list standard NAT_INSIDE
permit 10.10.0.0 0.0.255.255
!
ip nat inside source list NAT_INSIDE interface GigabitEthernet0/0/1 overload
no ip http server
no ip http secure-server
ip classless
ip route 0.0.0.0 0.0.0.0 xxxx

 

 

core sw:


interface TenGigabitEthernet1/0/18
description to router

no switchport
ip address 10.10.2.2 255.255.255.252
!

interface TenGigabitEthernet1/0/2
description to AccessSW01 
switchport trunk native vlan 111
switchport trunk allowed vlan 5,7,10,15,17,18,20,30,50
switchport mode trunk

 

 

Access sw:

 

interface TenGigabitEthernet1/1/3
description to core
switchport trunk native vlan 111
switchport trunk allowed vlan 5,7,10,15,17,18,20,30,50
switchport mode trunk
switchport nonegotiate

 

I don't see any Layer 3 interfaces on your access and core switch. I see your core switch has a L3 interface in the subnet 10.10.2.0/30 but to be able to reach this subnet from your access switch you need at least a L3 SVI on your core and access within the vlans trunked between each others.

Thanks
Francesco
PS: Please don't forget to rate and select as validated answer if this answered your question

Give IP and Default gateway to the switch..Post full Conf

Give IP and Default gateway to the switch..Post full Conf

Hello,

 

--> My Access switch cannot ping router interface gi0/0 10.10.2.1 through core switch routed port te1/018 10.10.2.2.

 

Post the full configuration of your access switch...

My pc's from access switch are able to access internet.

 

I configured eigrp on core switch and router advertising their respective networks.

Default route on both were not providing internet access nor reachability between router and access switch so added eigrp

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