Packet capture on a switch is not going to show you everything (or
anything).
Traffic passing through a switch is handled in the switch chipset and
doesn't touch the CPU so RouterOS won't see most of it. You'll only see
broadcasts or packets destined for the switch itself. To packet capture
you'd have to set up a port mirror, and you mirror the traffic to a port
where your capture device is plugged in (CCR or PC with Wireshark). I
believe you can mirror traffic to the CPU, just keep in mind that the
800mhz ARM can't process the whole capacity of the port. It's probably
ok to do that if the port isn't carrying live traffic.
On 2/15/2021 9:36 AM, Nate Burke wrote:
I don't 'think' it's an MTU issue, even a simple IPv6 ping won't go
across the P2P circuit.
On the CRS317, if I torch Vlan3000 on the ccr1009 interface, I see the
IPv6 icmp packets coming in from my CCR1009, but if I torch the
Interface going to the P2P circuit on the CRS317, I see no IPv6
traffic. Is that a problem, or because of the way the Mikrotik packet
flows work, I would only see traffic as it enters the router, and
since there is no reply from the far end, nothing would show up.
On 2/15/2021 6:15 AM, Adam Moffett wrote:
I don't think MTU would be the issue. If the endpoint has a 1500
byte MTU then it will send IP packets up to 1500 bytes long. IPv6
header is a little longer, but that means the data portion will just
have to be a little shorter. So if you had an MTU issue with v6
you'd have an MTU issue with v4 also.
On 2/14/2021 5:27 PM, Steve Jones wrote:
The ip6 traffic is encapsulated in the vlan? Ip6 headers I'm
assuming are larger because the number itself is longer, mtu. But
I'm just now learning to use vlans and I lick the tasty windows so I
dont know a lot
On Sun, Feb 14, 2021, 3:00 PM Adam Moffett <dmmoff...@gmail.com
<mailto:dmmoff...@gmail.com>> wrote:
Unless you've defined it as a protocol based VLAN then no it
shouldn't
matter.
On 2/14/2021 3:12 PM, Nate Burke wrote:
> I have a P2P circuit plugged into a CRS317-1G-16S+ and setting
> PVID3000 on that bridge interface. A Mikrotik CCR1009 is
plugged
> into another port on the CRS317 set for trunked VLan3000. I
can move
> IPv4 traffic on Vlan3000 and to the other end of the P2P
circuit just
> fine, but I cannot move any IPv6 traffic on Vlan3000.
>
> The Vlan shouldn't care about IP4 vs IP6 traffic, right? I
just want
> to make sure I'm not causing my own problem before pointing my
finger
> at the Circuit.
>
> The IPv6 package is not installed on the CRS317, because it's
just
> acting as a switch, it's not doing any routing. That shouldn't
> matter, right?
>
--
AF mailing list
AF@af.afmug.com <mailto:AF@af.afmug.com>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
