PC6248 ARP

Question

Dear All

I received those log from PC6248, I have no idea how to find out the root cause.

Those IP address are multicast IP address. I don't have any multicast application in my networking.

Can anyone help ?

Thanks a lot.

<190> NOV 12 11:37:59 x.x.x.x1 UNKN[105112544]: isdp_txrx.c(164) 1237 %% For
eign pdu on interface 2

<188> NOV 12 11:38:24 x.x.x.x.-1 ARP[158738064]: ipmap_arp_api.c(836) 1238 %%
Received ARP Request on interface VLAN- 2 with bad target IP address 236.27.x.x.
Sender IP is x.x.x.x, sender MAC is xx:xx:xx:xx:xx:xx

<190> NOV 12 11:38:59 x.x.x.x-1 UNKN[105112544]: isdp_txrx.c(164) 1239 %% For
eign pdu on interface 2

chinghui · Answer

the running-config as shown below.

chinghui · Answer

There were no any changes made to the config and network.   It was the only IP logged in these message as the sender.

chinghui · Answer

I got more information. There is an another switch, called Switch A, connect to PC6248 port 2. The servers connect to Switch A. I wonder what 'Foreign PDU' means? and what situation may cause it happen? Thanks.

chinghui · Answer

We don't have these IP address in our network. These look like multicast IP. And I don't know why this server send those message. The server operates well. Is there any method to check?

Networking General

PC6248 ARP

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