arp problem

[j773303]

Why arp -a would show the below,

15.27.22.1 (15.27.22.1) -- no entry

How to delete it? Does this affect the network?

[T G Manikandan]

There is no problem with that entry.

If you still want to delete the entry from the table then just do a

#arp -d 15.27.22.1


Thanks

[twang]

Do a arp -d to delete the entry.
then you ping an ip address it will appear in the arp table.

[j773303]

It could not be deleted. The message as below,

# arp -d 15.27.22.1
SIOCDARP: Invalid argument

What does happend? Thanks.

[Sergejs Svitnevs]

"no entry" means "a nonexistent entry".

If no entry is available in the ARP cache, an ARP request is generated, sent out to the network and the calling thread will be suspended. Something is still asking for the old IP address. Do you still have it in /etc/hosts (or nis, DNS, NetBIOS etc). i.e. If something asked for the machine by name would it still get the wrong IP address?

Regards,
Sergejs

[T G Manikandan · Accepted solution]

Try loading the latest arp patch

http://www2.itrc.hp.com/service/patch/patchDetail.do?patchid=PHNE_21184&context=hpux:800:11:00

[T G Manikandan]

Try loading the latest arp patch

http://www2.itrc.hp.com/service/patch/patchDetail.do?patchid=PHNE_21184&context=hpux:800:11:00

[T G Manikandan]

What OS version you are running?

the above patch is for 11.0

[j773303]

The OS is 11.00. I'd try to load the PATCH for arp. Thanks.