Solved :: IEWB ver 4 Lab 13 Section 9.1 DHCP & PPP negotiated

From: Mohamed Radwan (abobakr.mohamed@gmail.com)
Date: Sun May 20 2007 - 05:37:01 ART


Dear All,

I found where the problem was R1 wasn't able to send packets to Relay Agent
because it was trying to send it to 139.1.45.5 which it doesn't have route
for

no the problem is solved after advertising 139.1.45.0 network to R1

R4(config-if)#do sh ip int s0/1
Serial0/1 is up, line protocol is up
  Internet address is 139.1.45.4/32 <<<<<<<<<<<<<<<<<<<<<<<
  Broadcast address is 255.255.255.255
  Address determined by IPCP
  Peer address is 139.1.45.5

Thanks,
Mohamed

On 5/19/07, Mounir Mohamed <mounir.mohamed@gmail.com> wrote:
>
> Dear Mohamed,
>
> I beleive there IP help command should be used on R5 in order to forward
> the DHCP requests as unicast toward R1.
>
> Best Regards,
> Mounir Mohamed
>
>
> On 5/18/07, Mohamed Radwan <abobakr.mohamed@gmail.com> wrote:
>
> > Dear GS,
> >
> > I am facing a problem with IEWB Lab 13 Section 9.1 which asks for
> > getting
> > router ip address through DHCP here is the topology
> >
> > R4 (s0/1/0)----- PPP---- (s0/1/0)R5
> > (s0/0/0.1)-------------FR--------(s0/0/0) R1
> >
> > here is the configuration for the 3 routers
> >
> > R4
> > interface Serial0/1/0 <<<<<<<<<<<<<< to R5
> > ip address negotiated
> > encapsulation ppp
> > !
> >
> > R5
> > ip dhcp-server 139.1.15.1
> > !
> > interface Serial0/0/0.1 point-to-point <<<<< to R1
> > ip address 139.1.15.5 255.255.255.0
> > frame-relay interface-dlci 501
> > !
> > interface Serial0/1/0 <<<<< to R4
> > ip address 139.1.45.5 255.255.255.0
> > encapsulation ppp
> > peer default ip address dhcp
> > clock rate 64000
> > !
> >
> > R1
> > ip dhcp excluded-address 139.1.45.0 139.1.45.3
> > ip dhcp excluded-address 139.1.45.5 139.1.45.255
> > !
> > ip dhcp pool r5
> > network 139.1.45.0 255.255.255.0
> > !
> > interface Serial0/0/0 <<<<<<<<< to R5
> > ip address 139.1.15.1 255.255.255.0
> > frame-relay map ip 139.1.15.5 105 broadcast
> > --------------------------------------------------------------
> > R4 didn't get its IP address , even I can see R1 sending the address to
> > the
> > R5 (DHCP relay Agent)
> >
> > Rack1R1#
> > *May 18 19:15:59.858: DHCPD: Sending notification of DISCOVER:
> > *May 18 19:15:59.858: DHCPD: htype 1 chaddr 0017.5926.2660
> > *May 18 19:15:59.862: DHCPD: circuit id 00690000
> > *May 18 19:15:59.862: DHCPD: DHCPDISCOVER received from client
> >
> > 0063.6973.636f.2d31.3339.2e31.2e34.352e.352d.5365.7269.616c.302f.312f.30through
> > relay
> > 139.1.45.5.
> > *May 18 19:15: 59.862: DHCPD: Seeing if there is an internally specified
> > pool
> > class:
> > *May 18 19:15:59.862: DHCPD: htype 1 chaddr 0017.5926.2660
> > *May 18 19:15:59.862: DHCPD: circuit id 00690000
> > *May 18 19:15:59.862: DHCPD: Sending DHCPOFFER to client
> > 0063.6973.636f.2d31.3339.2e31.2e34.352e.352d.5365.7269.616c.302f.312f.30(
> > 139.1.45.4). <<<<<< R1 sending the address
> >
> > Any Ideas
> >
> > Best Regards,
> > Mohamed
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
>
>
>
> --
> Best Reagrds,
> Mounir Mohamed



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