Questions tagged [proxy-arp]
For questions about Proxy ARP, where it is a technique by which a device on a given network answers the ARP queries for an IP address that is not on that network. For instance, you are troubleshooting a case where your router uses huge amounts of CPU on ARP requests, that might be caused by proxy ARP.
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2answers
96 views
Why ARP need ARP cross LAN request?
Why ARP need ARP cross LAN request?
When I am reading a document:
You see the host A(10.1.0.1/8) send ARP Request for 20.2.0.1/8's MAC address.
In general, the ARP request is for MAC address in the ...
2
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2answers
127 views
The need of proxy ARP on the next-hop router
I'm watching a video course provided by Cisco, and I came across one interesting part regarding the need of proxy ARP:
If a router uses a static route that uses an outgoing interface
instead of a ...
2
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1answer
405 views
arp or proxy-arp causing high cpu
We have an issue on a Cisco A901-6CZ-F-A with high cpu caused by Arp requests coming on Vlan11 from our customer.
We enabled 'debug arp' to try and diagnose, below is a small snippet.
IP addresses ...
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1answer
670 views
ARP requests and multiple interfaces
Suppose a device has both ethernet and wireless interfaces enabled and active. Is it correct that ARP requests from one (e.g., ethernet) cannot reach the other (e.g., wireless) unless a Proxy ARP is ...
0
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1answer
2k views
PFsense - Reach via NAT and Proxy ARP destination behind the same firewall without the system knowing the RFC1918-IP
I'm a little bit confused and pretty sure it won't work. But a mate and me are arguing for so long now, I decided to ask you.
Imagine a PFSense Firewall with 3 Interfaces.
2 different LAN-Interfaces
...
2
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1answer
912 views
Juniper SRX-240. Single Address Translation
Edit Feb 4 The issue remains relevant, any help appreciated.
Once again, I'm not a network engineer, so this must be a noob question.
Simple task: I have a server in my private network and I need to ...
3
votes
4answers
1k views
Inter-VLAN Routing and Proxy Arp
the network above shown has PC1(10.10.10.1) AND PC2(10.10.10.2) IN VLAN 10 10.10.10.0/24
AND PC3(20.20.20.3) and PC4(20.20.20.4) in VLAN 20 20.20.20.0/24
I have configured all the configuration ...
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2answers
9k views
Difference between proxy arp and default gateway
Firstly what I understand,
Default Gateway--> When we set the default gateway in PC the network layer check the destination IP address and if it is not on same broadcast domain as the source IP ...
