with the dhcp on the Client side i dont know that it will work with the
unnumbered on the Server virtual interface...
because the dhcp Client is going to be an IP address in the end, i think if
you could get it to be unnumbered it would, but i have no idea how you would
get to that solution such to use dhcp and make it unnumbered at the same
time, just dont think there is a solution there...
but then again, maybe somebody else here on the list can see one...
later..
garry..
-- Garry L. Baker "There is no 'patch' for stupidity." - www.sqlsecurity.com On Fri, Aug 20, 2010 at 8:21 PM, Gaurav Thukral <pearlgaurav_at_gmail.com>wrote: > Hi Garry, > > Thanks a lot. Yes it does work fine. > > Just wanted to check if I use unnumbered on virtual interface, is there > still a way that routes are exchanged fine? I mean is there any work around > if any ? > > Thanks & Regards, > Gaurav > > > > > On Fri, Aug 20, 2010 at 9:15 PM, garry baker <baker.garry_at_gmail.com>wrote: > >> try this command on the Client router and you will see the problem: >> 'sh ip ospf database router adv-router 192.168.16.6' >> >> you should see "Adv Router is not-reachable" and you will see a strange >> Router Interface address looking something like 0.0.0.14 (or some number >> that is not an IP on your router or you did not set as router-id under the >> ospf process) >> >> aslo 'show ip ospf int br' and look at the ospf network types, Server will >> be broadcast on the f0/0 and on the Cleint will be p2p on the >> dialer-interface >> >> it is due to the unnumbered interface on the Server you are using: >> interface Virtual-Template1 >> >> ip vrf forwarding ABC >> ip unnumbered FastEthernet0/0 >> >> change this to the IP of the F0/0 interface and it will start working >> >> see this article for a more detailed explanation: >> >> >> http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009481a.shtml#r4 >> >> HTH >> garry >> >> -- >> Garry L. Baker >> >> "There is no 'patch' for stupidity." - www.sqlsecurity.com >> >> >> On Fri, Aug 20, 2010 at 3:55 PM, 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 >>> >>> >>> Blogs and organic groups at http://www.ccie.net >>> >>> _______________________________________________________________________ >>> Subscription information may be found at: >>> http://www.groupstudy.com/list/CCIELab.html Blogs and organic groups at http://www.ccie.netReceived on Fri Aug 20 2010 - 20:30:46 ART
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