Please check. Switch9 Building configuration... Current configuration : 3191 bytes ! ! Last configuration change at 16:23:32 UTC Fri Sep 16 2022 ! version 15.2 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption service compress-config ! hostname sw9 ! boot-start-marker boot-end-marker ! ! no logging console enable password 7 02050D480809 ! username cisco password 7 14141B180F0B no aaa new-model ! ! ! ! ! ! ! ! no ip domain-lookup ip domain-name network.com ip cef no ipv6 cef ! ! ! spanning-tree mode pvst spanning-tree extend system-id ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface GigabitEthernet0/0 switchport trunk allowed vlan 1,10,20,30,40 switchport trunk encapsulation dot1q switchport mode trunk negotiation auto ! interface GigabitEthernet0/1 negotiation auto ! interface GigabitEthernet0/2 negotiation auto ! interface GigabitEthernet0/3 negotiation auto ! interface GigabitEthernet1/0 negotiation auto ! interface GigabitEthernet1/1 negotiation auto ! interface GigabitEthernet1/2 negotiation auto ! interface GigabitEthernet1/3 negotiation auto ! interface Vlan1 no ip address ! interface Vlan30 ip address 12.0.0.107 255.255.255.224 ! ip forward-protocol nd ! ip http server ! ip route 0.0.0.0 0.0.0.0 12.0.0.1 ip ssh server algorithm encryption aes128-ctr aes192-ctr aes256-ctr ip ssh client algorithm encryption aes128-ctr aes192-ctr aes256-ctr ! ! ! ! ! ! control-plane ! banner exec ^C IOSv - Cisco Systems Confidential - Supplemental End User License Restrictions ! line con 0 line aux 0 line vty 0 4 password 7 02050D480809 login local ! ! end ---------------------------------------------------- vIOS2 Building configuration... Current configuration : 3232 bytes ! ! Last configuration change at 16:00:10 UTC Fri Sep 16 2022 ! version 15.6 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname R2 ! boot-start-marker boot-end-marker ! ! no logging console enable password 7 094F471A1A0A ! no aaa new-model ethernet lmi ce ! ! ! mmi polling-interval 60 no mmi auto-configure no mmi pvc mmi snmp-timeout 180 ! ! ! ! ! ! ! ! ! ! ! no ip domain lookup ip domain name network.com ip cef no ipv6 cef ! multilink bundle-name authenticated ! ! ! ! username cisco password 7 094F471A1A0A ! redundancy ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface GigabitEthernet0/0 ip address 12.0.0.2 255.255.255.252 duplex auto speed auto media-type rj45 ! interface GigabitEthernet0/1 ip address 12.0.0.5 255.255.255.252 duplex auto speed auto media-type rj45 ! interface GigabitEthernet0/2 no ip address duplex auto speed auto media-type rj45 ! interface GigabitEthernet0/2.8002 encapsulation dot1Q 10 ip address 12.0.0.105 255.255.255.224 ! interface GigabitEthernet0/3 no ip address shutdown duplex auto speed auto media-type rj45 ! ip forward-protocol nd ! ! no ip http server no ip http secure-server ip route 0.0.0.0 0.0.0.0 12.0.0.1 ! ! ! ! control-plane ! ! line con 0 line aux 0 line vty 0 4 password 7 1511021F0725 login local transport input none ! no scheduler allocate ! end ---------------------------------------------------- I'm trying to ping from switch10 to switch7 sw10#ping 12.0.0.43 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 12.0.0.43, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) (from devices vIOS2 and Switch9.) R2#ping 12.0.0.107 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 12.0.0.107, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) sw9#ping 12.0.0.104 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 12.0.0.104, timeout is 2 seconds: ..... Success rate is 0 percent (0/5)