Re: PPPOE with DHCP and VRF + OSPF

Hi Gaurav,

on server side levave virtual ip address unnumber.

on client side make Dialer ip unnumer f0/0 and make int f0/0 ip dhcp

=====

SERVER:

ip dhcp use vrf connected
!
interface Virtual-Template 1
 ip vrf forwarding ABC
 ip unnumbered FastEthernet0/0
 peer default ip address dhcp-pool PPPOE
 ppp authentication chap callin PPPOE

CLIENT:
!
interface FastEthernet0/0
 ip address dhcp
 duplex auto
 speed auto
 pppoe enable
 pppoe-client dial-pool-number 1
!
interface Dialer1
 mtu 1492
 ip unnumber f0/0
 encapsulation ppp
 dialer pool 1
 no peer neighbor-route
 ppp chap hostname LAB
 ppp chap password 0 LAB
!
======

Hope this will solve your problem with VRF dhcp lease and OSPF route
exchange. If any problem pls let me know.

Cheers :-)

Kaushik

On 20 August 2010 13:55, Gaurav Thukral <pearlgaurav_at_gmail.com> wrote:
> Hi,
>
> I am having a issue with PPPOE using DHCP and PPPOE server interface in VRF,
> also running OSPF over this PPPOE link. I Just using two router topology (
> http://www.ccie18473.net/dynamips/dynamips.htm#pppoe-old-dhcp-vrf).
> I am able to get IP address for dialer interface from DHCP server, also my
> OSPF session is coming up fine, but the issue is that whereas server is able
> to get ospf routes from client, client is not having any ospf routes from
> server.
>
> Please if someone take a look and let me know if I am missing something
> here.
>
>
>
> Server config :-
>
>
>
> no ip dhcp use vrf connected
> ip dhcp excluded-address 192.168.16.2 192.168.16.254
> !
> ip dhcp pool PPPOE
> network 192.168.16.0 255.255.255.0
> !
> !
> ip vrf ABC
> rd 1:1
> !
> ip vrf forwarding
> !
> no ip ips deny-action ips-interface
> vpdn enable
> !
> vpdn-group CISCO
> accept-dialin
> protocol pppoe
> virtual-template 16
>
> username LAB password 0 LAB
>
> interface Loopback0
> ip vrf forwarding ABC
> ip address 1.1.1.1 255.255.255.255
> !
> interface FastEthernet0/0
> ip vrf forwarding ABC
> ip address 192.168.16.6 255.255.255.0
> duplex auto
> speed auto
> pppoe enable
> !
>
> !
> interface Virtual-Template 1
> ip vrf forwarding ABC
> ip unnumbered FastEthernet0/0
> peer default ip address dhcp-pool PPPOE
> ppp authentication chap
> !
> router ospf 100 vrf ABC
> log-adjacency-changes
> network 1.1.1.1 0.0.0.0 area 0
> network 192.168.16.6 0.0.0.0 area 0
>
>
>
> Client config :-
>
>
> !
> interface Loopback0
> ip address 2.2.2.2 255.255.255.255
> !
> interface FastEthernet0/0
> no ip address
> duplex auto
> speed auto
> pppoe enable
> pppoe-client dial-pool-number 1
> !
> interface Dialer1
> mtu 1492
> ip address dhcp
> encapsulation ppp
> dialer pool 1
> no peer neighbor-route
> ppp chap hostname LAB
> ppp chap password 0 LAB
> !
> router ospf 100
> log-adjacency-changes
> network 2.2.2.2 0.0.0.0 area 0
> network 192.168.16.1 0.0.0.0 area 0
> !
>
>
>
> Server side :-
>
> Router#sh ip ospf neighbor
>
> Neighbor ID Pri State Dead Time Address Interface
> 192.168.16.1 0 FULL/ - 00:00:35 192.168.16.1
> Virtual-Access2.1
> Router#
>
> Router#sh ip
> os
> Router#sh ip ospf
> da
> Router#sh ip ospf
> database
>
> OSPF Router with ID (192.168.16.6) (Process ID 100)
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum Link count
> 192.168.16.1 192.168.16.1 722 0x8000001D 0x000717 3
> 192.168.16.6 192.168.16.6 485 0x80000019 0x00D3FF 3
> Router#
> Router#sh ip route vr
> Router#sh ip route vrf ABC
>
> Routing Table: ABC
> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 1.0.0.0/32 is subnetted, 1 subnets
> C 1.1.1.1 is directly connected, Loopback0
> 2.0.0.0/32 is subnetted, 1 subnets
> O 2.2.2.2 [110/2] via 192.168.16.1, 00:08:10, Virtual-Access2.1
> 192.168.0.0/16 is variably subnetted, 2 subnets, 2 masks
> S 192.168.16.1/32 is directly connected, Virtual-Access2.1
> C 192.168.16.0/24 is directly connected, FastEthernet0/0
> Router#
>
>
> Client Side :-
>
> Router#sh ip route
> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route
>
>
> Gateway of last resort is not set
>
> 2.0.0.0/32 is subnetted, 1 subnets
> C 2.2.2.2 is directly connected, Loopback0
> 192.168.0.0/24 is subnetted, 1 subnets
> C 192.168.16.0 is directly connected, Dialer1
> Router#sh ip ospf nei
> Router#sh ip ospf neighbor
>
> Neighbor ID Pri State Dead Time Address Interface
> 192.168.16.6 0 FULL/ - 00:00:39 192.168.16.6
> Dialer1
> Router#
>
> Router#sh ip ospf database
>
> OSPF Router with ID (192.168.16.1) (Process ID 100)
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum Link count
> 192.168.16.1 192.168.16.1 784 0x8000001D 0x000717 3
> 192.168.16.6 192.168.16.6 550 0x80000019 0x00D3FF 3
> Router#
>
> Thanks & Regards,
> Gaurav
>
>
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Received on Sat Aug 21 2010 - 18:32:16 ART