[c-nsp] Half duplex VRF

[Arie Vayner (avayner)]

So basically your PPP connections are in the global routing table...
What is the profile you are downloading from RADIUS (debug radius) for them?

You most likely should be downloading the "ip vrf forwarding U downstream D" command using the RADIUS attribute "lcp:interface-config=ip vrf forwarding U downstream D"...
http://www.cisco.com/en/US/docs/ios/12_3/feature/guide/ghdpvrf.html#wp1099907

Arie

From: Hitesh Vinzoda [mailto:vinzoda.hitesh at gmail.com]
Sent: Wednesday, October 10, 2012 00:44
To: Arie Vayner (avayner)
Cc: Cisco Mailing list
Subject: Re: [c-nsp] Half duplex VRF

Hi Arie,

Below is the desired excerpt. We can't see the VRF config being applied to the interfaces but its visible in "show ip int virtual-access". I have tried two different way in RADIUS attributes but the results are the same.

LNS#show ppp all
Interface/ID OPEN+ Nego* Fail-     Stage    Peer Address    Peer Name
------------ --------------------- -------- --------------- --------------------
Vi4          LCP+ CHAP+ IPCP+      LocalT   192.168.254.200 \
spoke at cerberusnetworks.co.uk<mailto:spoke at cerberusnetworks.co.uk>
Vi3          LCP+ CHAP+ IPCP+      LocalT   192.168.254.100 \
mpls at cerberusnetworks.co.uk<mailto:mpls at cerberusnetworks.co.uk>
LNS#show run int vir
LNS#show run int virtual-acc
LNS#show run int virtual-access 3
Building configuration...

Current configuration : 78 bytes
!
interface Virtual-Access3
 ip mtu 1492
 ip verify unicast reverse-path
end

LNS#show run int virtual-access 4
Building configuration...

Current configuration : 78 bytes
!
interface Virtual-Access4
 ip mtu 1492
 ip verify unicast reverse-path
end
=================

LNS#show ip int virtual-access 3
Virtual-Access3 is up, line protocol is up
  Interface is unnumbered. Using address of Loopback2 (2.2.2.1)
  Broadcast address is 255.255.255.255
  Peer address is 192.168.254.100
  MTU is 1492 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is not set
  Proxy ARP is enabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP Flow switching is disabled
  IP CEF switching is enabled
  IP CEF switching turbo vector
  IP CEF turbo switching turbo vector
  VPN Routing/Forwarding "U"
  Downstream VPN Routing/Forwarding "D"
  Associated unicast routing topologies:
    ipv4 topologies in downstream VRF "D" :
        Topology "base", operation state is UP
    ipv4 topologies in upstream(forwarding) VRF "U":
        Topology "base", operation state is UP
===============================================
Thanks
Hitesh

On Tue, Oct 9, 2012 at 9:52 PM, Arie Vayner (avayner) <avayner at cisco.com<mailto:avayner at cisco.com>> wrote:
Hitesh, how does your virtual-access look like for the spokes?
Can you please share the "show run interface virtual-access xx" for the spokes?

Tnx
Arie

From: Hitesh Vinzoda [mailto:vinzoda.hitesh at gmail.com<mailto:vinzoda.hitesh at gmail.com>]
Sent: Tuesday, October 09, 2012 09:05
To: Arie Vayner (avayner)
Cc: Cisco Mailing list
Subject: Re: [c-nsp] Half duplex VRF

Hi Arie,

I have attached topology, .Net file and configs of related devices. R8 and R9 are simulating spokes whereas Internet-RTR is simulating Hub.

Cheers

Hitesh
On Tue, Oct 9, 2012 at 8:37 PM, Arie Vayner (avayner) <avayner at cisco.com<mailto:avayner at cisco.com>> wrote:
Hitesh, can you maybe share some of your configs?
Arie

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net<mailto:cisco-nsp-bounces at puck.nether.net> [mailto:cisco-nsp-bounces at puck.nether.net<mailto:cisco-nsp-bounces at puck.nether.net>] On Behalf Of Hitesh Vinzoda
Sent: Tuesday, October 09, 2012 07:04
To: Cisco Mailing list
Subject: [c-nsp] Half duplex VRF

I am trying to setup half duplex vrf to save vrf's on the LNS. Does anyone has working configuration for spokes and Hub connected on the same PE router i.e. LNS. So far i able to export-import the routes but the traces from one spoke to other goes directly via LNS instead of via Hub.

Please advise.

TIA
Hitesh
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