Re: 4or6.con question

2017-03-16 Thread Alexandru Suciu via NANOG
If its a linux box and most likely it isand depending on the number of hops from 4or6.com to your target machine it is possible that the probes reach you with higher port number the the ones you allowed. For example this is what I get when I trace to google which is 10 hops away. Probes that m

Re: Forwarding issues related to MACs starting with a 4 or a 6 (Was: [c-nsp] Wierd MPLS/VPLS issue)

2016-12-07 Thread Alexandru Suciu via NANOG
The root cause for that issue is most likely due to the following bug: BUG65077 : On the DCS-7150 series, the MPLS label of a frame may be incorrectly overwritten by a DSCP field update in the ASIC. Fixed in 4.11.7 , 4.12.6 , 4.13.0 . It was not related on the MAC values but rather the incorrect