lwIP - A Lightweight TCP/IP stack - Bugs: bug #56925, Functions to obtain effective...
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bug #56925: Functions to obtain effective reachability (ARP or NDP) status of an IP address
Submitter: | Simon Arlott <s_a> | ||
Submitted: | Fri 20 Sep 2019 06:34:40 PM UTC | ||
Category: | ARP | Severity: | 3 - Normal |
Item Group: | Feature Request | Status: | Need Info |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Open | Planned Release: | None |
lwIP version: | 2.1.1 |
Fri 10 Jan 2020 09:25:28 PM UTC, comment #2: |
Simon Goldschmidt <goldsimon> |
Fri 20 Sep 2019 09:09:57 PM UTC, comment #1: This is what I'm currently doing to check reachability:
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Simon Arlott <s_a> |
Fri 20 Sep 2019 06:34:40 PM UTC, original submission:
With etharp_find_addr() I can make sure there is a known ARP entry for an IPv4 address before trying to send packets. It's not perfect because it's necessary to check the IPv4 gateway if the destination is in another network.
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Simon Arlott <s_a> |
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Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2020-01-10 | goldsimon | Status | None | Need Info |
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Corresponding source code
Do you know any portable/standard function to do this? If not, I'm afraid I'll close this as invalid (and then, feel free to send a patch implementing it, but we currently don't have the development resources to implement such a request).