11-08-2019 06:47 AM
Hello,
Should I include some sort of default path in EIGRP or something?
Im able to ping inside my network, however when trying to ping an IP address outside of my network, one of my core switches is returning a "Destination host unreachable."
! version 15.1 ! hostname Oslo-IntEdge ! ! license udi pid CISCO2911/K9 sn FTX1524SQCT- ! spanning-tree mode pvst ! interface GigabitEthernet0/0 ip address dhcp ip nat outside duplex auto speed auto ! interface GigabitEthernet0/1 no ip address ip nat inside duplex auto speed auto ! interface GigabitEthernet0/1.10 encapsulation dot1Q 10 ip address 172.16.2.155 255.255.255.224 ip nat inside ! interface GigabitEthernet0/1.20 encapsulation dot1Q 20 ip address 172.16.2.122 255.255.255.128 ip nat inside ! interface GigabitEthernet0/1.30 encapsulation dot1Q 30 ip address 172.16.2.186 255.255.255.224 ip nat inside ! interface GigabitEthernet0/1.40 encapsulation dot1Q 40 ip address 172.16.1.250 255.255.255.224 ip nat inside ! interface GigabitEthernet0/1.100 encapsulation dot1Q 100 ip address 172.16.2.194 255.255.255.248 ip nat inside ! interface GigabitEthernet0/2 description DMZ ip address 172.16.36.30 255.255.255.224 ip nat inside duplex auto speed auto ! interface Vlan1 no ip address shutdown ! router eigrp 10 network 172.16.0.0 0.0.3.255 ! ip nat inside source list 1 interface GigabitEthernet0/0 overload ip nat inside source static 172.16.36.29 209.165.201.10 ip nat inside source static tcp 172.16.36.28 80 209.209.201.11 80 ip classless ! ip flow-export version 9 ! ! access-list 1 permit 172.16.0.0 0.0.3.255 !
! version 16.3.2 ! hostname Core2 ! ip routing ! vtp domain HQ vtp mode transparent ! spanning-tree mode pvst spanning-tree vlan 1,10,30 priority 0 spanning-tree vlan 20,40,100 priority 4096 ! vlan 10 name MGTM ! vlan 20 name IT ! vlan 30 name EMPLOYEE ! vlan 40 name GUEST ! vlan 99 name BLACKHOLE ! vlan 100 name SERVER ! interface Port-channel1 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree link-type point-to-point ! interface GigabitEthernet1/0/1 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk ! interface GigabitEthernet1/0/2 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk ! interface GigabitEthernet1/0/22 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk switchport nonegotiate ! interface GigabitEthernet1/0/23 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active spanning-tree link-type point-to-point ! interface GigabitEthernet1/0/24 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active spanning-tree link-type point-to-point ! interface Vlan1 no ip address shutdown ! interface Vlan10 mac-address 00e0.f94c.5801 ip address 172.16.2.157 255.255.255.224 standby 1 ip 172.16.2.158 ! interface Vlan20 mac-address 00e0.f94c.5802 ip address 172.16.2.124 255.255.255.128 standby 1 ip 172.16.2.126 ! interface Vlan30 mac-address 00e0.f94c.5803 ip address 172.16.2.188 255.255.255.224 standby 1 ip 172.16.2.190 ! interface Vlan40 mac-address 00e0.f94c.5804 ip address 172.16.1.252 255.255.254.0 standby 1 ip 172.16.1.254 ! interface Vlan100 mac-address 00e0.f94c.5805 ip address 172.16.2.196 255.255.255.248 standby 1 ip 172.16.2.198 ! router eigrp 10 network 172.16.0.0 0.0.3.255 no auto-summary ! ip default-gateway 172.16.2.122 ip classless ! ip flow-export version 9 !
! version 16.3.2 ! hostname Core1 ! no ip cef ip routing ! vtp domain HQ vtp mode transparent ! spanning-tree mode pvst spanning-tree vlan 20,40,100 priority 0 spanning-tree vlan 1,10,30 priority 4096 ! vlan 10 name MGMT ! vlan 20 name IT ! vlan 30 name EMPLOYEE ! vlan 40 name GUEST ! vlan 99 name BLACKHOLE ! vlan 100 name SERVER ! interface Port-channel1 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree link-type point-to-point ! interface GigabitEthernet1/0/1 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk switchport nonegotiate ! interface GigabitEthernet1/0/2 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk switchport nonegotiate ! interface GigabitEthernet1/0/20 switchport access vlan 100 switchport mode access switchport nonegotiate ! interface GigabitEthernet1/0/23 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active spanning-tree link-type point-to-point ! interface GigabitEthernet1/0/24 switchport trunk native vlan 99 switchport trunk allowed vlan 10,20,30,40,100 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode active spanning-tree link-type point-to-point ! interface Vlan1 no ip address standby 1 preempt shutdown ! interface Vlan10 mac-address 00d0.9736.ec01 ip address 172.16.2.156 255.255.255.224 standby 1 ip 172.16.2.158 standby 1 priority 110 standby 1 preempt ! interface Vlan20 mac-address 00d0.9736.ec02 ip address 172.16.2.123 255.255.255.128 standby 1 ip 172.16.2.126 standby 1 priority 200 standby 1 preempt ! interface Vlan30 mac-address 00d0.9736.ec03 ip address 172.16.2.187 255.255.255.224 standby 1 ip 172.16.2.190 standby 1 priority 110 standby 1 preempt ! interface Vlan40 mac-address 00d0.9736.ec04 ip address 172.16.1.251 255.255.254.0 standby 1 ip 172.16.1.254 standby 1 priority 200 standby 1 preempt ! interface Vlan100 mac-address 00d0.9736.ec05 ip address 172.16.2.195 255.255.255.248 standby 1 ip 172.16.2.198 standby 1 priority 200 standby 1 preempt ! router eigrp 10 network 172.16.0.0 0.0.3.255 no auto-summary ! ip default-gateway 172.16.2.122 ip classless ! ip flow-export version 9 !
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11-08-2019 07:26 AM
Hello,
the trunk between the Core switch and the edge router had a native Vlan mismatch. I have changed the native Vlan to 20 on both sides.
The 'ip default-gateway' is used only when the switch is in layer 2 mode. I have removed that and exchanged it with static default routes (in case EIGRP fails for one reason or another).
Attached the revised project file...
11-08-2019 06:48 AM
11-08-2019 07:26 AM
Hello,
the trunk between the Core switch and the edge router had a native Vlan mismatch. I have changed the native Vlan to 20 on both sides.
The 'ip default-gateway' is used only when the switch is in layer 2 mode. I have removed that and exchanged it with static default routes (in case EIGRP fails for one reason or another).
Attached the revised project file...
11-08-2019 08:50 AM
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