[cisco-bba] ospf over pppoe link

[Mark Jones]

Here is some of the config. Let me know what else you may need.



router ospf 1
 router-id XXX.X.137.65
 log-adjacency-changes
 limit retransmissions dc disable non-dc disable
 redistribute connected subnets route-map netout
 redistribute static subnets route-map netout
 network xxx.x.136.213 0.0.0.0 area 0
 network xxx.x.137.65 0.0.0.0 area 0

!<snip>

interface Virtual-Template3
 mtu 1492
 ip unnumbered FastEthernet0/0.4
 ip load-sharing per-packet
 ip ospf mtu-ignore
 no logging event link-status
 load-interval 30
 peer default ip address pool dynlon1
 ppp authentication pap PPP_LOCAL
 ppp authorization PPP_LOCAL



sh ip ospf int vi3.1

Virtual-Access3.1 is up, line protocol is up
  Internet Address 0.0.0.0/0, Area 0
  Process ID 1, Router ID XXX.X.137.65, Network Type POINT_TO_POINT, Cost: 1
  Transmit Delay is 1 sec, State POINT_TO_POINT
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    No Hellos (Passive interface)
  Supports Link-local Signaling (LLS)
  Cisco NSF helper support enabled
  IETF NSF helper support enabled
  Index 4/4, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 0, maximum is 0
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 0, Adjacent neighbor count is 0
  Suppress hello for 0 neighbor(s)


----- Original Message ----- 
From: "Oliver Boehmer (oboehmer)" <oboehmer at cisco.com>
To: "Mark Jones" <mjones at mnsi.net>; <cisco-bba at puck.nether.net>
Sent: Wednesday, March 21, 2007 12:38 PM
Subject: RE: [cisco-bba] ospf over pppoe link


> Mark Jones <> wrote on Wednesday, March 21, 2007 4:42 PM:
>
>> We are trying to run ospf over a pppoe link. everything works to as
>> you would expect with ospf except that on the lns side the
>> virtual-access interface is always in passive mode so it never sends
>> hellos packets or listens for them. The client side is sending them
>> out the proper interface. has anyone done this successfully?
>>
>> I can supply config snap shots if that is helpful.
>>
>
> OSPF config is needed, but I'd guess you did something like
>
> router ospf 1
> passive-interface default
> no passive-interface Virtual-template1
>
> This won't work as the "no passive-interface" is taken literally, the
> Virtual-Access<n>  (VAI) interfaces will be matched by the
> "passive-interface default".
>
> Depending on your IOS version, you could use the "ip ospf area <area>"
> interface command to enable OSPF (see the "Area Command in Interface
> Mode for OSPFv2" feature documentation), and apply this command via
> Radius/lcp:interface-config in a per-user fashion so only some users
> will be able to speak OSPF with you. If this doesn't work, you could use
> a different loopback interface for these users (either a different
> vtemplate or apply an "ip unnumbered Loopback1" using
> Radius/lcp:interface-config) and use "network <loopback1-address>
> 0.0.0.0 area <area>", so all VAI's referencing this loopback will be put
> into OSPF.
> Make sure to run OSPF MD5 authentication here..
>
> But, this is just a wild guess ;-)
>
> oli
>
>
>
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> 7:52 AM
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>