• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Sharp copy machine answering ARP requests for Gateway

H

Huminator

Junior Member
Anyone ever heard of anything like this. Gateway is 10.25.1.1 and the sharp copy machine was answering arp requests for it. It caused mucho connectivity issues for an entire building at work! Nobody knows why here. The printer's IP was not set to the gateway ip.

TIA
 
Machines sending out ARP replies that look like they are random often happen when:

1) the machine is configured with the wrong subnetmask. or other machines on the network are configured with wrong subnetmasks.
2) the offending machine has "proxy ARP" enabled.

Not sure it is the case here. But it is the first thing I would look at. Subnet masks.
 
JackMDS said:
Wow, what a Big trouble I guess that chupacabra sits on the Power plug/network connection of the printer and does not let you to disconnect it until you find a solution.

======================
http://www.kb.lesolson.com/InstantKB20/KnowledgebaseArticle50454.aspx

www.[B]sharp[/B].se/cps/rde/xbcr/.../arm207_om_setupguide_gb.pdf


😎
Click to expand...

It took a while to track it down because there were other issues that kind of masked this issue i.e a security video feed that was hogging a big portion of the wan link. Plus the site has a small pipe (10Meg) which was constantly near max. Once we tracked it down we immediately shut down its port, but I was wondering if anyone had seen anything like this before since Google basically returned nothing.
 
Gryz said:
Machines sending out ARP replies that look like they are random often happen when:

1) the machine is configured with the wrong subnetmask. or other machines on the network are configured with wrong subnetmasks.
2) the offending machine has "proxy ARP" enabled.

Not sure it is the case here. But it is the first thing I would look at. Subnet masks.
Click to expand...

You are correct. It was configged with a /24 subnet mask and it should have been a /21!
 
Huminator said:
You are correct. It was configged with a /24 subnet mask and it should have been a /21!
Click to expand...
Thanks for coming back and acknowledging the correct answer.

Often people ask questions on fora. People give suggestions how to troubleshoot or how to fix such issues. And then we never hear back. Writing answers on fora, for people who later might have the same problem, can be very helpful for the future.
 
Huminator said:
You are correct. It was configged with a /24 subnet mask and it should have been a /21!
Click to expand...

Your sharp copier was set with an IP of 10.25.225.9 with a /24 subnet mask and a gateway address of 10.25.1.1? Since that gateway isn't in that subnet at all, it shouldn't have even allowed that to begin with?
 
Sorry I was wrong. The subnet was supposed to be /16 not a /21. I don't think that would make a difference though.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top