I lost connectivity to one of our remote systems and when I checked the messages log I found the following:
So the messages indicate a MAC address, but is there a way I can trace that MAC address to an IP address so that I can solve where this issue could have started? I am of course assuming that someone tried to configure a duplicate IP on another system and that caused a connectivity issue.
Type in
for example to list all entries in the arp cache of your host (name, ip-address, mac-address).
You can also check the man page of arp to see what other switch might suit your needs best.
Did you try that on the host that was actually tried to be connected by that offending IP-address?
Or maybe your LAN network guys can check on their arp-caches if the MAC shows up somewhere on their switches/routers.
four interfaces with ifconfig
all interfaces have the same mac. If is not set for unique.
but it still works.
what difference does it make to have all macs the same or different? (4 Replies)
Hi folks,
I found out the following:
provadm@BKP_LIV_NPPGW_02:home/provadm%/usr/sbin/arp -a
Net to Media Table: IPv4
Device IP Address Mask Flags Phys Addr
------ -------------------- --------------- -------- --------------------
ce5 BKP_OnM_NPPGW_02 255.255.255.255 SPLA 00:14:4f:44:e0:86... (1 Reply)
I have following message in my messages file on solaris 10
WARNING: e1000g3712000:3 has duplicate address 010.022.196.011 (in use by 00:50:56:85:25:ef); disabled
Now is there any way i can find which server has 00:50:56:85:25:ef mac address either IP or Hostname ? (6 Replies)
I m having interface ce0 ce1 and its sub interfaces for that.
I want to give MAC addresses for the same.
How will I assign it.
Please give solution for the same (4 Replies)
Not sure if this is the right place to post this, but I thought I'd start here. Not really a Unix question, but I'm hoping the gurus here can help me in an area I know little about.
Someone got one of my credit card numbers. Tried to use it to charge a bunch of stuff over the internet. The... (4 Replies)
Hi sir,
i want to make such programe which takes MAC(Ethernet) address of any host & give me its IP address.......
but i'm nt getting that how i can pass the MAC address to Frame........
Please give me an idea for making such program...
Thanks & regards
Krishna (3 Replies)
I posted this thread under BSD but realized that it actually belongs here instead.... makes more sense to put it under IP. So without further delay on to my problem ...
I havent been using UNIX for that long, so this question might sound quite stupid to most of you. I want to know how to mask my... (2 Replies)