Hello,

Try this commands

conf t >> IP routing >>> on ASR1k  . It is set by default. Just in case.

show vlan on both switch and ASR>> to see if vlan 203 has been created

show interface GigabitEthernet0/0/1  and other involved interfaces on both  >> to check the status of interfaces

I am trying to connect a new ASR, the only connection other than the one POS interface out to the internet, is to a 3750 so I can manage it outside of a serial connection. Here is what I have... I am unable to ping from one switch to the other. 12.175.12.28 to 12.175.12.26


3750

interface Vlan203
 ip address 12.175.12.1 255.255.255.0
 no ip unreachables
end

interface GigabitEthernet1/0/1
 description ATT MIS ASR RTR
 switchport access vlan 203
 switchport mode access
 speed 1000
 duplex full
 no cdp enable
end

also tried

interface GigabitEthernet1/0/1
 description ATT MIS ASR RTR
 switchport trunk encapsulation dot1q
 switchport mode trunk
 speed 1000
 duplex full
 no cdp enable
end



ASR1k


interface GigabitEthernet0/0/1
 description To MDDDMZS01-NR03 Gi1/0/1
 no ip address
 speed 1000
 no negotiation auto
end

interface GigabitEthernet0/0/1.203
 encapsulation dot1Q 203
 ip address 12.175.12.28 255.255.255.0
end

Thanks,


John

Hi John,

First check the physical connection is up between 3750 and ASR. Then check the interface is not part of any vrf in ASR.

Then try configuring the interface with Layer 3 method for simple troubleshooting.

Hope it Helps..

-GI