Re: [lwip-users] lwip supports IEEE 802.1q tagged frame?

[address@hidden]

I'm afraid I can't help you right now: it's been a while since I worked 
with lwIP arp and/or VLAN, but I can tell you it has worked for me 
somehow :-)

I've added a task on savannah for this. I'll see what I can do to dig 
out my changes for that.

Simon


Anubhav Saksena wrote:
> For this do I need to modify the Packet Structure in etharp.c?
>
> PACK_STRUCT_BEGIN
> struct eth_hdr {
> #if ETH_PAD_SIZE
>   PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
> #endif
>   PACK_STRUCT_FIELD(struct eth_addr dest);
>   PACK_STRUCT_FIELD(struct eth_addr src);
>   PACK_STRUCT_FIELD(u16_t type);
> } PACK_STRUCT_STRUCT;
> PACK_STRUCT_END
>
> What else I need to change to handle VLAN ID?
>
> Anubhav
>
>
>
>
> --------------------------------------------------
> From: "Simon Goldschmidt" <address@hidden>
> Sent: Friday, December 19, 2008 2:03 PM
> To: "Mailing list for lwIP users" <address@hidden>
> Subject: Re: [lwip-users] lwip supports IEEE 802.1q tagged frame?
>
>   
> > > Can anyone tell me whether lwip 1.3.0 has support for IEEE 802.1q tagged
> > > frame, I.e. VLAN ID.
> > >       
> > Support for that would be the responsibility of your ethernet driver. I'm 
> > sorry I can't tell you if the etharp module can handle the VLAN tags on 
> > receive (if not, it would be a good thing to add), but they will not be 
> > created on sending frames.
> >
> > Simon
> > --
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> >     
>
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