03-31-2022 12:47 AM
I cannot ping from PC1 (IP-10.10.10.5 , DG- 10.10.10.254) to 8.8.8.8 even after configuring HSRP and Vlans also. Ospf routing also is used but I can't seem to find any problem with the routing part. Can anyone please help me?
Configurations
Switch A ========= A#sh run Building configuration... Current configuration : 2469 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname A ! boot-start-marker boot-end-marker ! ! logging discriminator EXCESS severity drops 6 msg-body drops EXCESSCOLL logging buffered 50000 logging console discriminator EXCESS ! no aaa new-model no ip icmp rate-limit unreachable ! ip cef no ip domain-lookup ! no ipv6 cef ! ! ! spanning-tree mode pvst spanning-tree extend system-id ! vlan internal allocation policy ascending ! ip tcp synwait-time 5 ! ! ! ! ! ! interface Port-channel1 no ip address shutdown ! interface Ethernet0/0 switchport switchport trunk encapsulation dot1q switchport trunk native vlan 80 switchport mode trunk duplex auto ! interface Ethernet0/1 no ip address duplex auto channel-group 1 mode on ! interface Ethernet0/2 no ip address duplex auto channel-group 1 mode on ! interface Ethernet0/3 no ip address duplex auto ! interface Ethernet1/0 no ip address duplex auto ! interface Ethernet1/1 no ip address duplex auto ! interface Ethernet1/2 no ip address duplex auto ! interface Ethernet1/3 no ip address duplex auto ! interface Ethernet2/0 switchport switchport access vlan 10 switchport mode access duplex auto ! interface Ethernet2/1 switchport switchport access vlan 20 switchport mode access duplex auto ! interface Ethernet2/2 no ip address duplex auto ! interface Ethernet2/3 no ip address duplex auto ! interface Ethernet3/0 no ip address duplex auto ! interface Ethernet3/1 no ip address duplex auto ! interface Ethernet3/2 no ip address duplex auto ! interface Ethernet3/3 ip address 192.1.1.2 255.255.255.0 duplex auto ! interface Vlan1 no ip address shutdown ! interface Vlan10 ip address 10.10.10.2 255.255.255.0 standby 10 ip 10.10.10.254 standby 10 priority 150 standby 10 preempt ! interface Vlan20 ip address 20.20.20.2 255.255.255.0 standby 20 ip 20.20.20.254 standby 20 priority 150 standby 20 preempt ! router ospf 1 network 10.10.10.0 0.0.0.255 area 0 network 20.20.20.0 0.0.0.255 area 0 network 192.1.1.0 0.0.0.255 area 0 ! ! no ip http server ip route 0.0.0.0 0.0.0.0 192.1.1.1 ip route 0.0.0.0 0.0.0.0 Vlan10 ip route 0.0.0.0 0.0.0.0 Vlan20 ! ! no cdp advertise-v2 ! ! ! control-plane ! ! line con 0 exec-timeout 0 0 privilege level 15 logging synchronous line aux 0 exec-timeout 0 0 privilege level 15 logging synchronous line vty 0 4 login transport input all ! end Switch S ========== s#sh run Building configuration... Current configuration : 2419 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname s ! boot-start-marker boot-end-marker ! ! logging discriminator EXCESS severity drops 6 msg-body drops EXCESSCOLL logging buffered 50000 logging console discriminator EXCESS ! no aaa new-model no ip icmp rate-limit unreachable ! ip cef no ip domain-lookup ! no ipv6 cef ! ! ! spanning-tree mode pvst spanning-tree extend system-id ! vlan internal allocation policy ascending ! ip tcp synwait-time 5 ! ! ! ! ! ! interface Port-channel1 no ip address shutdown ! interface Ethernet0/0 switchport switchport trunk encapsulation dot1q switchport trunk native vlan 80 switchport mode trunk duplex auto ! interface Ethernet0/1 no ip address duplex auto channel-group 1 mode on ! interface Ethernet0/2 no ip address duplex auto channel-group 1 mode on ! interface Ethernet0/3 no ip address duplex auto ! interface Ethernet1/0 no ip address duplex auto ! interface Ethernet1/1 no ip address duplex auto ! interface Ethernet1/2 no ip address duplex auto ! interface Ethernet1/3 no ip address duplex auto ! interface Ethernet2/0 switchport switchport access vlan 10 switchport mode access duplex auto ! interface Ethernet2/1 switchport switchport access vlan 20 switchport mode access duplex auto ! interface Ethernet2/2 no ip address duplex auto ! interface Ethernet2/3 no ip address duplex auto ! interface Ethernet3/0 no ip address duplex auto ! interface Ethernet3/1 no ip address duplex auto ! interface Ethernet3/2 no ip address duplex auto ! interface Ethernet3/3 ip address 193.1.1.2 255.255.255.0 duplex auto ! interface Vlan1 no ip address shutdown ! interface Vlan10 ip address 10.10.10.1 255.255.255.0 standby 10 ip 10.10.10.254 standby 10 preempt ! interface Vlan20 ip address 20.20.20.1 255.255.255.0 standby 20 ip 20.20.20.254 standby 20 preempt ! router ospf 1 network 10.10.10.0 0.0.0.255 area 0 network 20.20.20.0 0.0.0.255 area 0 network 193.1.1.0 0.0.0.255 area 0 ! ! no ip http server ip route 0.0.0.0 0.0.0.0 193.1.1.1 ip route 0.0.0.0 0.0.0.0 Vlan10 ip route 0.0.0.0 0.0.0.0 Vlan20 ! ! no cdp advertise-v2 ! ! ! control-plane ! ! line con 0 exec-timeout 0 0 privilege level 15 logging synchronous line aux 0 exec-timeout 0 0 privilege level 15 logging synchronous line vty 0 4 login transport input all ! end Internet ========= Internet(config)#do sh run Building configuration... Current configuration : 1749 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Internet ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 no ip icmp rate-limit unreachable ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ip tcp synwait-time 5 ! ! ! ! ! interface Loopback0 ip address 8.8.8.8 255.255.255.0 ! interface Ethernet0/0 ip address 192.1.1.1 255.255.255.0 half-duplex ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! interface Ethernet3/0 no ip address shutdown half-duplex ! interface Ethernet3/1 no ip address shutdown half-duplex ! interface Ethernet3/2 no ip address shutdown half-duplex ! interface Ethernet3/3 ip address 193.1.1.1 255.255.255.0 half-duplex ! router ospf 1 log-adjacency-changes network 8.8.8.0 0.0.0.255 area 0 network 192.1.1.0 0.0.0.255 area 0 network 193.1.1.0 0.0.0.255 area 0 ! no ip http server no ip http secure-server ! ip route 0.0.0.0 0.0.0.0 192.1.1.2 ip route 0.0.0.0 0.0.0.0 193.1.1.2 ip route 0.0.0.0 0.0.0.0 10.10.10.1 ip route 0.0.0.0 0.0.0.0 10.10.10.2 ip route 0.0.0.0 0.0.0.0 20.20.20.1 ip route 0.0.0.0 0.0.0.0 20.20.20.2 ! ! no cdp log mismatch duplex ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 logging synchronous line aux 0 exec-timeout 0 0 privilege level 15 logging synchronous line vty 0 4 login ! ! end
03-31-2022 03:21 AM
I did the same configuration in packet tracer and Eve-ng its working. I dont know what is wrong with gns3.
03-31-2022 03:22 AM
Remove all static Route if you running OSPF all Routers
SWTICH A
no ip route 0.0.0.0 0.0.0.0 192.1.1.1
no ip route 0.0.0.0 0.0.0.0 Vlan10
no ip route 0.0.0.0 0.0.0.0 Vlan20
Switch S
========
no ip route 0.0.0.0 0.0.0.0 193.1.1.1
no ip route 0.0.0.0 0.0.0.0 Vlan10
no ip route 0.0.0.0 0.0.0.0 Vlan20
Internet
=========
no ip route 0.0.0.0 0.0.0.0 192.1.1.2
no ip route 0.0.0.0 0.0.0.0 193.1.1.2
no ip route 0.0.0.0 0.0.0.0 10.10.10.1
no ip route 0.0.0.0 0.0.0.0 10.10.10.2
no ip route 0.0.0.0 0.0.0.0 20.20.20.1
no ip route 0.0.0.0 0.0.0.0 20.20.20.2
configture p2p interface on the below example :
Both the switches :
interface Ethernet3/3
ip ospf network point-to-point
Internet router :
interface Ethernet0/0
ip ospf network point-to-point
!
interface Ethernet3/3
ip ospf network point-to-point
with this above you should see route in all 3 switches
show ip ospf neigh (config you have
show ip route confirm you see all the routes
still issue :
post below information : (updated latest show run config)
show ip route
show ip interface brief
show ip ospf neigh
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