Unanswered Question
Apr 27th, 2010


I need to create a VLAN on a  3750 switch whereby the users in that VLAN get assigned an address from the following range and a certain gateway

Range -


This is so users on this VLAN have unrestricted internet access.

I was just wondering how I go about doing this?

Thanks in advance

I have this problem too.
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drikilbride Tue, 04/27/2010 - 08:30

Thanks for that!

One other question.

I have two VLANS, VLAN1 (Native) and VLAN 56.

VLAN1 goes out through .254

VLAN56 should access internet via .218

How do I ensure that users in VLAN 56 get the range associated with the new dhcp pool and that users in the Native VLan1 get the standard DHCP settings from our domain controllers?


Thiyagu VG Tue, 04/27/2010 - 09:01


You can try the following,

Under VLAN 56 SVI Interface, assign ip helper-address as VLAN 56 L3 address,


interface vlan 56

ip add x.x.x.x

ip helper-address x.x.x.x



Under VLAN 1 assign your Domain-Controller(DHCP Server) IP Address, so that VLAN 1 user will get ip from that server


interface vlan 1

ip add y.y.y.y

ip helper-address "your domain controller(DHCP Server) IP address"




I'm not sure what exactly you are expecting from the follwing,


VLAN1 goes out through .254

VLAN56 should access internet via  .218"



drikilbride Tue, 04/27/2010 - 09:15

Thats exactly it, I need traffic from VLAN 56 to go out through the gateway .218.

Is PBR the only way I can do it?

My OS version isnt compatible with that...typical!

Thanks again

dpatten78 Tue, 04/27/2010 - 09:19

As far as I know.

You can download the correct IOS (need CCO account), ipservices capable one.

drikilbride Wed, 04/28/2010 - 04:27


Thanks for that, have downloaded the updated IOS for pbr.

Am new to this so I'm not sure of the config to use.

How would I set it so that all traffic on VLAN56 would go out a DGW of considering all the PC's will be on the subnet.

Thanks again for all your help!

droeun141 Wed, 04/28/2010 - 06:32

Is a next-hop router or is it the IP you have assigned to  vlan 56?

dpatten78 Wed, 04/28/2010 - 06:59

Nothing yet

I was agreeing to your question about weather it was the VLAN IP or next hop.  

drikilbride Thu, 04/29/2010 - 02:22

Okay this is the config I have done, hopefully it works. Im hoping this will push any traffic that is associated with vlan56 out through

access-list 101 permit ip any

route-map vlan56internet permit 10

match ip address 101

set ip next-hop  (Internet Gateway)

int vlan56

ip policy route-map vlan56internet

Thanks again


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