Ethereal-users: Re: [Ethereal-users] Supported Networkcards

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From: "Guy Harris" <gharris@xxxxxxxxx>
Date: Thu, 12 Aug 2004 15:53:11 -0700 (PDT)
Voss Michael said:
> i search for a Supported Networkcard list (Type an name of cards).

We don't have such a list.  We just rely on the underlying packet capture
mechanism to supply us with captured packets, so a supported network
adapter list would really be a list, for a particular release of a
particular OS (or, in the case of WinPcap, a particular release of a
particular OS *and* of WinPcap), of the adapters supported by the
underlying packet capture mechanism.

> the problem is, that i can't see all tracepackets (VLAN ID) .

What packets are you seeing and what packets are you not seeing?  I don't
know what "(VLAN ID)" means here - does it mean you're not seeing *any*
VLAN packets, or you're not seeing packets for particular VLANs, or what?

Note that on a particular OS a VLAN might have a "pseudo-device" for an
interface on that VLAN, so that you might have a "raw" Ethernet device
that corresponds to the actual network adapter, and that supplies Ethernet
packets as received by the adapter, and one or more VLAN devices,
corresponding to particular VLANs on that adapter, that supply "fake"
Ethernet packets constructed by stripping off the VLAN header and putting
into the Ethernet header the packet type field from the VLAN header.  I
don't know what OSes those would be.

On those OSes, capturing on the pseudo-device probably would show you the
"fake" Ethernet packets, so that you don't see the VLAN header and thus
don't see the VLAN ID, and so that you don't see any packets other than
those on that VLAN.  Capturing on the "raw" Ethernet device, if possible,
might show you all the packets, complete with VLAN headers.