topic Dynamically resolve ARP upon ipfwd application in P-Series

Dynamically resolve ARP upon ipfwd application

shanfeifei — Wed, 30 Dec 2015 08:29:50 GMT

The SDK1.6 says that:Note that ipfwd application does not dynamically resolve ARP – missing ARP entries will result in the application dropping the packet.

So how to dynamically resolve ARP? Modify the code of ipfwd application?

Re: Dynamically resolve ARP upon ipfwd application

lunminliang — Mon, 18 Jan 2016 10:18:57 GMT

Hello shan feifei,

USDPAA IPFWD could response ARP request, but won't send ARP request to resolve ARP, thus ARP entries needs to be hard coded in configuration script.

Yes, you need additional development, to support dynamic ARP:

1. Implement in IPFWD application.

2. Offload to Linux, get it from there and cache to IPFWD application.

Is it urgent?

Have a great day,
Lunmin

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Re: Dynamically resolve ARP upon ipfwd application

shanfeifei — Wed, 20 Jan 2016 02:49:39 GMT

Hi,Lunmin,thank you for your reply!

It is a little urgent,so do you have some ready-made C codes for resolving ARP?