Example: Dhcp Relay For Two Vlans - ZyXEL Communications GS2210-8 User Manual

Table 173 I P Applicat ion > DHCP > DHCPv4 > VLAN > Port ( cont inued)
LABEL
Opt ion 82
Profile
Add
Cancel
Clear
I ndex
VI D
Port
Profile Nam e
Delet e
Cancel

40.4.8 Example: DHCP Relay for Two VLANs

The following exam ple displays t wo VLANs ( VI Ds 1 and 2) for a cam pus net work. Two DHCP servers
are inst alled t o serve each VLAN. The syst em is set up t o forward DHCP request s from t he
dorm it ory room s ( VLAN 1) t o t he DHCP server wit h an I P address of 192.168.1.100. Request s from
t he academ ic buildings ( VLAN 2) are sent t o t he ot her DHCP server wit h an I P address of
172.16.10.100.
Figure 243 DHCP Relay for Two VLANs
VLAN 1
VLAN 2
For t he exam ple net work, configure t he VLAN Se t t ing screen as shown.
Chapter 40 DHCP
DESCRIPTION
Select a pre- defined DHCP opt ion 82 profile t hat t he Swit ch applies t o t he specified port ( s)
in t his VLAN. The Swit ch adds t he Circuit I D sub- opt ion and/ or Rem ot e I D sub- opt ion
specified in t he profile t o DHCP request s t hat it relays t o a DHCP server.
The profile you select here has priorit y over t he one you select in t he D H CP > D H CPv4 >
VLAN screen.
Click t his t o creat e a new ent ry or t o updat e an exist ing one.
This saves your changes t o t he Swit ch's run- t im e m em ory. The Swit ch loses t hese changes
if it is t urned off or loses pow er, so use t he Sa ve link on t he t op navigat ion panel t o save
your changes t o t he non- volat ile m em ory when you are done configuring.
Click t his t o reset t he values above based on t he last select ed ent ry or, if not applicable, t o
clear t he fields above.
Click Cle a r t o reset t he fields t o t he fact ory default s.
This field displays a sequent ial num ber for each ent ry. Click an index num ber t o change t he
set t ings.
This field displays t he VLAN t o which t he port ( s) belongs.
This field displays t he port ( s) t o which t he Swit ch applies t he set t ings.
This field displays t he DHCP opt ion 82 profile t hat t he Swit ch applies t o t he port ( s) in t his
VLAN.
Select an ent ry's check box t o select a specific ent ry. Ot herwise, select t he check box in t he
t able heading row t o select all ent ries.
Select t he ent ry( ies) t hat you want t o rem ove, t hen click t he D e le t e but t on t o rem ove t he
select ed ent ry( ies) from t he t able.
Click t his t o clear t he check boxes above.
GS2210 Series User's Guide
DHCP: 192.168.1.100
DHCP: 172.16.10.100
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