Problem with Interswitch Communication. with four layer 3 switches

[marshall111]

Hello I am having trouble getting these switches to be able to see the networks. I did the ip route on the switch marked Buda_Switch and it is talking to the Congress_Switch just fine but i can not get the ip route to take in packet tracer to the Research_Switch and the Anderson_Mill_Switch. If anyone can help me out that will be great thank you. and here is my configurations.

Buda Switch

!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
!
ip routing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/1
!
interface FastEthernet0/2
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 66
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan30
 ip address 192.168.30.1 255.255.255.252
!
interface Vlan66
 ip address 192.168.66.250 255.255.255.0
!
ip classless
ip route 192.168.77.0 255.255.255.0 192.168.30.2
ip route 192.168.99.0 255.255.255.0 192.168.30.6
ip route 192.168.88.0 255.255.255.0 192.168.30.5
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end

Congress_Switch

!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
!
ip routing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/1
!
interface FastEthernet0/2
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 77
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan30
 ip address 192.168.30.2 255.255.255.252
!
interface Vlan77
 ip address 192.168.77.250 255.255.255.0
!
router rip
!
ip classless
ip route 192.168.88.0 255.255.255.0 192.168.30.5
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end

Research_Switch

!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
!
ip routing
!
!
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/1
!
interface FastEthernet0/2
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 88
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan30
 ip address 192.168.30.5 255.255.255.252
!
interface Vlan88
 ip address 192.168.88.250 255.255.255.0
!
ip classless
ip route 192.168.77.0 255.255.255.0 192.168.30.2
ip route 192.168.99.0 255.255.255.0 192.168.30.6
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end

Anderson_Mill_Switch

!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
!
!
ip routing
!
!
!
!
!
!
!
!
!
!
!
!
no ip domain-lookup
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/1
!
interface FastEthernet0/2
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 99
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan30
 ip address 192.168.30.6 255.255.255.252
!
interface Vlan99
 ip address 192.168.99.250 255.255.255.0
!
ip classless
ip route 192.168.88.0 255.255.255.0 192.168.30.5
ip route 192.168.66.0 255.255.255.0 192.168.30.1
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end

[acampbell · Accepted solution]

Hi,

On the BUDA switch you have 2 routes added:-

ip route 192.168.99.0 255.255.255.0 192.168.30.6
ip route 192.168.88.0 255.255.255.0 192.168.30.5

.5 & .6 are set set as your next hop but you dont have access to these addresses fronm this switch

Your vlan 30 has a 255.255.225.252 mask so your usable ip addresses are .1 & .2 only

This mistakes happens repeatably throughout your configs.

The next hop address should be on a subnet you the local device has access to.

To save you alwasys having to write static routes try using a routing protocol.
For this small network try RIP V2 (This supports varible length subnet masking)

On all switches remove all the static routes

no ip route ......

Implement RIP/V2 on all swithes

On BUDA

!
router rip
version 2
network 192.168.30.0
network192.168.66.0
no auto-summary
!

On Congress

!
router rip
version 2
network 192.168.30.0
network192.168.77.0
no auto-summary
!

On Research

!
router rip
version 2
network 192.168.30.0
network192.168.88.0
no auto-summary
!

Anderson_Mill

!
router rip
version 2
network 192.168.30.0
network192.168.99.0
no auto-summary
!

See this link for more info:-
http://www.cisco.com/c/en/us/td/docs/ios/12_2/ip/configuration/guide/fipr_c/1cfrip.html

Regards
Alex

[marshall111]

Okay that worked. Now I am configuring the actually switches they are the sg300 managed switches. I have two of them right now. how would i apply what you said to those switches because they do not support router rip

[acampbell]

Hi,

I dont have much experience on the SG300s.
I did look at the admin book and they dont look like they support RIP.

You will need to use static routing.

You will need to make sure that the "NEXT HOP" you point to is pingable from
your switch IE// Your switch should be in the same subnet.

Regards
Alex