On 5/2/14 4:28 AM, Wilkinson, Alex wrote:
> 0n Thu, Jan 30, 2014 at 05:53:53AM +1100, Peter Haag wrote:
>
> >Hi David,
> >
> >On 29/1/14 2:18 PM, David Villaume wrote:
> >> Hi,
> >>
> >> I tried the new feature < Asr 1000 NEL > but i can't get the field <
> vrf id> valid.
> >>
> >> Did someone tried this feature with vrf Nat ?
> >
> >If you have the enabled NSEL/NEL while compiling (--enable-nsel), then
> the vrf information should be available. Do not
> >forget to tell nfcapd to switch on those extension ( -Tnsel or -Tall ).
> Test the collected record with ./nfdump -o raw.
> >You'll see the complete record content.
>
> Using "nfdump -o raw -R ..." what exactly within the record would indicate
> that NSEL is being exported ?
It's indeed a bug in netflow v9 module: The patch fixes this:
--- netflow_v9.c.orig 2013-12-19 10:49:11.000000000 +0100
+++ netflow_v9.c 2014-02-04 21:17:56.000000000 +0100
@@ -1026,10 +1026,10 @@
break;
case EX_NEL_COMMON:
PushSequence( table, NF_N_NAT_EVENT, &offset,
NULL);
- offset += 3;
+ offset += 7;
// XXX PushSequence( table, NF_N_POST_NAPT_SRC_PORT,
&offset, NULL);
// XXX PushSequence( table, NF_N_POST_NAPT_DST_PORT,
&offset, NULL);
-// XXX PushSequence( table, NF_N_INGRESS_VRFID,
&offset, NULL);
+ PushSequence( table, NF_N_INGRESS_VRFID,
&offset, NULL);
break;
case EX_NEL_GLOBAL_IP_v4:
// XXX PushSequence( table,
NF_N_NAT_INSIDE_GLOBAL_IPV4, &offset, NULL);
Thanks for the pcaps I got. It helps a lot to track down such problem.
Thanks
- Peter
>
> -Alex
>
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--
Be nice to your netflow data. Use NfSen and nfdump :)
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