From: Jian Gu (guxiaojian@gmail.com)
Date: Fri Jan 12 2007 - 20:51:18 ART
That certainly is not a correct configuration, but it does not explain why
debug on R1 did not show anything and why put DHCP server in the same vlan
of client will work -- assuming no other configuration change.
On 1/12/07, Tony Schaffran <groupstudy@cconlinelabs.com> wrote:
>
> The problem appears to be that your DHCP pool is a different subnet that
> the
> requesting device.
>
> Your pool subnet needs to be the same as vlan 3
>
> Tony Schaffran
> Network Analyst
> CCIE #11071
> CCNP, CCNA, CCDA,
> NNCDS, NNCSS, CNE, MCSE
>
> www.cconlinelabs.com
> Your #1 choice for online Cisco rack rentals.
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> ccie
> anees
> Sent: Friday, January 12, 2007 2:50 PM
> To: Edison Ortiz; ccielab@groupstudy.com
> Subject: Re: IOS DHCP issue
>
>
> I don't see any DHCP packets received in the debug.
>
> If I put the R1 also in the same vlan as vlan 3 and set the IP of R1
> fa0/0
> to the vlan 3 subnet IP, It is serving IP address to R3.
>
> I know it is difficult to troubleshoot to someone else's config on the
> e-mail.
>
> I just want to make the IOS DHCP server to server IP for remote subnets.
> If anyone have any working config, I will test it.
>
>
> Edison Ortiz <edisonmortiz@gmail.com> wrote:
> What does debug for DHCP on R1 looks like ?
>
>
> ----- Original Message -----
> From: "ccie anees"
> To:
> Sent: Friday, January 12, 2007 4:34 PM
> Subject: IOS DHCP issue
>
>
> > Hi,
> >
> > I have issues in getting IP from different subnet. Please kindly read
> > the below notes and let me know what I am doing wrong.
> >
> > R1 ------------------ SW1 -------------------------- R3
> > VLAN 17 VLAN 3
> >
> > R1 - DHCP server
> > SW1 - DHCP relay
> > R3 - DHCP client
> > **********************************************************************
> > Problem: R3 is not receiving IP address from DHCP server
> > **********************************************************************
> > Configuration:
> > ###############
> > R1
> > ####
> > interface FastEthernet0/0
> > ip address 129.1.17.1 255.255.255.0
> > !
> > no ip dhcp conflict logging
> > ip dhcp excluded-address 129.1.3.1 129.1.3.2
> > ip dhcp excluded-address 129.1.3.4 129.1.3.254
> > !
> > ip dhcp pool R3_Pool
> > network 129.1.3.0 255.255.255.0
> > default-router 129.1.3.7
> > !
> >
> > SW1
> > ######
> > interface Vlan17
> > ip address 129.1.17.7 255.255.255.0
> > interface Vlan3
> > ip address 129.1.3.7 255.255.255.128
> > ip helper-address 129.1.17.1
> >
> > R3
> > ###
> > interface FastEthernet3/0
> > ip address dhcp
> >
> >
> ****************************************************************************
>
> ***************
> > DEBUG on SW1
> > SW1#debug ip dhcp server packet
> > SW1#
> > 4w0d: DHCPD: setting giaddr to 129.1.3.7.
> > 4w0d: DHCPD: BOOTREQUEST from
> > 0063.6973.636f.2d30.3064.302e.6262.3766.2e35.3035
> > 342d.4661.332f.30 forwarded to 129.1.17.1.
> > 4w0d: DHCPD: setting giaddr to 129.1.3.7.
> > 4w0d: DHCPD: BOOTREQUEST from
> > 0063.6973.636f.2d30.3064.302e.6262.3766.2e35.3035
> > 342d.4661.332f.30 forwarded to 129.1.17.1.
> >
> >
> ****************************************************************************
>
> ***************
> >
> >
> > ---------------------------------
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