C3560x dhcp pools

[John Myhre]

Hi

i have an issue regarding the C3560x ver:12.2(55)SE1 License lvl: ipservices

i have a dhcp scope running and working on this router, i want to create another one, but this will give out 192.168.1.0 to an uplink port on another switch (dlink) -please dont ask...and then give clients access to the WAN, but with a 192.168.1.0 address instead of the 108.75.178.0.

this is the current config that i have:

ip dhcp pool Public
   network 108.75.178.224 255.255.255.224
   dns-server 108.75.181.16 108.75.181.76
   default-router 108.75.178.254

vlan 2
 name Public_IP

interface GigabitEthernet0/1
 switchport access vlan 2
 switchport mode access
 switchport nonegotiate
 spanning-tree portfast
 spanning-tree guard root

interface Vlan2
 description ## Public IP ##
 ip address 108.75.178.254 255.255.255.224

suggested config for second pool:

ip dhcp pool Public
   network 192.168.1.100 255.255.252.0
   dns-server ------------------------------------------------> what do i use ??
   default-router 192.168.1.254

vlan 3
 name Public_192

interface GigabitEthernet0/1
 switchport access vlan 3
 switchport mode access
 switchport nonegotiate
 spanning-tree portfast
 spanning-tree guard root

interface Vlan3
 description ## Public 192 ##
 ip address 192.168.1.100 255.255.252.0

[John Blakley]

John,

I'm not sure I understand what your question is. If your hosts are using 192.168.1.100 as their default gateway (regardless of what switch they're on), they can pull from a local pull on the switch as long as you have a scope in the 192.168.0.0/22. If you don't have one on here, you can redirect your requests to another server using a helper address on vlan 3's svi. As far as the dns-server line, you can use anything you want here as long as the host can get to it either internal or natted to the internet.

HTH,

John

[Richard Bradfield]

Just a thought wouldn't the Dlink provide DHCP for clients on the 192.168.1.0/24 network. Then you will not need any vlan 3 IP addressing, just ports on vlan 3

[John Myhre]

Yes, that could work. But the dlink is unmanaged switch

[Richard Bradfield]

Ok, so I assume there are users connected to the Dlink switch that need Internet access, so you will give them the 192.168.1.0/24 Ip address, then they will use your Public IP address to get out to the Internet. Then you will have to do some NAT...is this the case?

[John Myhre]

you are correct sir :)

There was a dlink 800series wich provided this service, but its unstable. so wanted Cisco to take control over this feature, but i probably need a L4 to do this right ? could you recomend a setup; WAN----->3560x---->1900

[Richard Bradfield]

John,

Somewhere the 192.168.1.0/24 network has to use NAT to get to the Internet.The 3560-X cannot do NAT so will have to be done somewhere else in your network. Most probably on the 1900 router.