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New Member

InterVlan Routing


I have 2 3560 switches connected to each other in a closed network. I've created 10 active VLANs. I want VLAN4, VLAN5, and VLAN6 to talk to each other.

Could you please help me with the intervlan configuration in order the 3 VLANs will be able to talk.

Hall of Fame Super Bronze

Re: InterVlan Routing

Have you created a Switch Virtual Interface (SVI) for each VLAN ?

On a switch, you create a VLAN (layer2) and you need to associate that VLAN to a SVI.

For instance, Layer2:

(config)#vlan 4

Layer 3:

(config)#interface vlan 4

(config-if)#ip address

Do the same for remaining VLANs. Keep in mind, 3560 come with routing disabled, so you need to type

(config)#ip routing

This will enable inter-vlan routing and allows you to configure dynamic routing protocols between the 2 switches, which brings me to the next question, what kind of dynamic routing protocol are you planning to run ?

New Member

Re: InterVlan Routing

well i'm running rip..

I did the SVI, it's still not working though.

i have a workstation on vlan 4 that can't talk to a system manager on vlan 5. what am i missing here?

Hall of Fame Super Bronze

Re: InterVlan Routing

Let's see the output from typing:

show ip route from the switch.

Also, is the source and destination on the same switch ?

Verify the workstation and system manager's default gateway, they should point to the IP address of their respective SVIs.

New Member

Re: InterVlan Routing

the source and destination are on the same switch.

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set is subnetted, 5 subnets

C is directly connected, Vlan4

C is directly connected, Vlan6

C is directly connected, Vlan5

C is directly connected, Vlan1

C is directly connected, Vlan10

Hall of Fame Super Bronze

Re: InterVlan Routing

Let's see the ipconfig /all from the source and destination workstation and a show arp from the switch

Re: InterVlan Routing

You can do this without any routing protocol.

Configure all the layer 2 VLANs in both switches and configure SVIs for the 3 VLANs that you want to do inter-vlan routing on BOTH switches. Configure the link between both switches as a trunk port. Of course, enable IP routing on both switches.

Here's a small example:


vlan 4

name test

int vlan 4

ip add


vlan 4

name test

int vlan 4

ip add

Actually, if you configure the link between the two switches as a trunk you don't even need to configure SVI on both switches but choose the option you desire.



New Member

Re: InterVlan Routing

here are the show arp and show ip int br:

MS&F#show arp

Protocol Address Age (min) Hardware Addr Type Interface

Internet - 001b.5440.7543 ARPA Vlan4

Internet - 001b.5440.7545 ARPA Vlan6

Internet - 001b.5440.7544 ARPA Vlan5

Internet 75 001b.5384.a240 ARPA Vlan1

Internet 76 001b.5384.8bc0 ARPA Vlan1

Internet 62 001b.5354.fc40 ARPA Vlan1

Internet 61 001b.5384.a4c0 ARPA Vlan1

Internet - 001b.5440.7540 ARPA Vlan1

Internet - 001b.5440.7549 ARPA Vlan10

Internet 0 0017.a4dd.38fd ARPA Vlan1

Internet 15 0001.292c.369a ARPA Vlan6

MS&F#show ip int br

Interface IP-Address OK? Method Status Protocol

Vlan1 YES NVRAM up up

Vlan2 unassigned YES manual up up

Vlan3 unassigned YES manual up up

Vlan4 YES manual up up

Vlan5 YES manual up up

Vlan6 YES manual up up

Vlan7 unassigned YES manual up up

Vlan8 unassigned YES manual up up

Vlan9 unassigned YES manual up up

Vlan10 YES manual up up

Hall of Fame Super Bronze

Re: InterVlan Routing

I see several hosts on Vlan 1 and one host on Vlan 6, can you ping these hosts from the switch ?

You need to verify these hosts have the correct default gateway. For host on Vlan 6, the default gateway should be and for hosts on Vlan 1, the default gateway should be

New Member

Re: InterVlan Routing

the several hosts are 3560 switches connected to this switch. the network is based on 5 switches connected through a ring. I'm able to ping to all of them.

i realized that the system manager ( is connected to the switch wasn't shown when i did show arp. does this explain anything?

Hall of Fame Super Bronze

Re: InterVlan Routing

Try pinging from the switch holding the IP

Then it should show up in the arp table.

You should also receive a reply from the device.

New Member

Re: InterVlan Routing

make sure ip routing is enabled


Re: InterVlan Routing


simply create

ip routing

int vlan 4

ip address <>

int vlan 5

ip address <>

int vlan 6

ip address <>

After that you can see you are getting the routes of these vlans by C

sh ip route

Hope this will help you .

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