pgcristovam Mon, 03/19/2007 - 04:14
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Hi Anthony.

So my vlans (2,3,4,5,6,7,8,9,10) cannot have a network address? Just one. The vlan1. All right?

The only time you would need the VLANs to have addresses of their own, is if you were doing inter-VLAN routing.

In that case, it is the router that needs an address in each VLAN, not the switch.

The CE500's cannot do this routing.

The IP you give the switch, is in order to manage the switch, and for no other reason, so all you need to decide is which VLAN is going to be the one which you use to manage the switches, and give the switch an IP on that VLAN.

It does not have to be VLAN 1.

pgcristovam Mon, 03/19/2007 - 04:31
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Ok Anthony.

So how can i do to my vlan in CE500 "talk" with vlan(with network address) in other switches Cisco (3550)? I just choose port trunk in CE500?


Amit Singh Mon, 03/19/2007 - 04:36
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  • Cisco Employee,

Configure the CE500 port as the trunk port and then configure the intervlan routing on 3550.

Config for 3550:

Config t

ip routing

Int vlan 2

ip address a.a.a.1 x.x.x.0

no shut

Int vlan 3

ip address b.b.b.1 x.x.x.0

no shut

Int vlan 4

ip address c.c.c.1 x.x.x.0

no shut

Int vlan 5

ip address d.d.d.1 x.x.x.0

no shut

....Same for all the vlans.

Once this is done, make sure that the host PC has the default gateway pointing to the SVI interfaces on 3550.


-amit singh

pgcristovam Mon, 03/19/2007 - 04:44
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Hi Anthony

The addresses from host PC at CE500 are of same range vlans (3550) example

3550 - vlan 2 (

So my host pc at CE500 and vlan 2 (172.17.1.x)

3550 - vlan 2 (

So my host pc at CE500 and vlan 2 (172.17.2.x)

All right? Therefore I don't insert network address in my vlan(CE500) it must have network address different!

So you have two 3550's, and each VLAN 2 has a differnet subnet?

That is not goingt o work if those switches are connected!

You seem to be getting cofused with switching and routing.

Please remember that the IP address of the switch is for management *only* it has nothing to do with what the clients can/cannot do.

The IP address that matters for the VLAN is the default router that the clients see. This will be the IP address that the 3550 which is doing the routing has on that particulat VLAN.

For example, I am soon to have 4 VLANs,,,,

The "26" network is going to be used for "management" so all switches have an IP on that network, as does the PC I will use to manage the switches.

The 3650 which we will have at the core, will have an IP address associated with each VLAN, and will know how to route each VLAN.

All Clinet PCs will be in VLAN 1, so will be in the range and will have a default gateway which is the 3650, VLAN 1 IP address.


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