Use this tag for everything that involves proxying the ARP protocol, from the proxy_arp setting in Linux's /proc, to a gateway answering to ARP requests on behalf of a full network on another interface.
Questions tagged [proxy-arp]
5 questions
5
votes
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eth0 is proxy-arping, but /proc/sys/net/ipv4/conf/eth0/proxy_arp is 0
I'm scratching my head about this question... I have a debian squeeze machine that is connected to an internal lab network. We have a lot of machines that have default proxy-arp configurations on them, and occasionally one of those machines starts…
Mike Pennington
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1 answer
Linux does not proxy-arp for me, despite the documentation suggesting that it does
I am working on a PDP-10 emulator (see https://github.com/Rhialto/klh10 ). The operating system installed inside it may want to communicate with the outside world via IPv4 (which was just gaining use when those machines were popular). For this…
Rhialto supports Monica
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3
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2 answers
How to add arp entry for an entire subnet (/16)?
I would like to add ARP entry for an entire subnet (10.50.0.0/16).
I tried : arp -v -i p4p1 -s 10.50.0.0 MAC_OF_P4P2 netmask 255.255.0.0 pub
But the command returns:
arp: SIOCSARP()
SIOCSARP: Invalid argument
No problem if I add one by one: arp -v…
Alexis
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3
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Enabling proxy_arp for interface eth2.1
Am trying to enable proxy arp for some of the interfaces, with the normal interface name eth0, eth1, etc
[[email protected]]# sysctl net.ipv4.conf.eth0.proxy_arp
0
But for interface names such as "eth1.11, eth2.1" its giving the below error.
Tried…
vindyz
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Is promiscuous mode needed for proxy arp?
edit: I have found that this is a duplicate of Why ARP Response only when network adapter in promiscuous mode?.
I use a Raspberry Pi 3B+ with Rasbian Stretch and set it up with proxy arp following the tutorial from Debian: Bridging Network…
Ingo
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