ARP table is not getting updated in Suse linux

senthil_kumar_1 — Tue, 30 Nov 2010 19:05:20 GMT

We have connected 16 "ProLiant BL460c G6" in the enclosure "Bladesystem c7000 Enclouser G2".

Before 4 months I have installed Suse 10 SP3 on two "ProLiant BL460c G6". I was able to ping each other with out any issues. And ARP table updated with MAC address and hostname automatically.

We have installed windows 2k3 in some other "ProLiant BL460c G6" in same enclouser.

Now just one week before I have installed Suse 10 SP3 on one more "ProLiant BL460c G6". This is not able to communicate with two other linux severs in the same enclouser. At the same time this new server is able to communicate with other windows servers in same enclouser and all other servers exist in LAN.

Then I found that MAC address of new linux server (linux_new) and old linux servers (linux_old1 and linux_old2) is not updated in each other server.

For example:

1)linux_new:

# arp
Address HWtype HWaddress Flags Mask Iface
linux_new (incomplete) eth0

2)linux_old1:

# arp
Address HWtype HWaddress Flags Mask Iface
linux_old1 (incomplete) eth0

3)linux_old2:

# arp
Address HWtype HWaddress Flags Mask Iface
linux_old2 (incomplete) eth0

As MAC is not automatically updated in each other servers. I am not able to ping.

So that I have added the MAC address manually:

1)In linux_new:

arp -d linux_old1
arp -s linux_old1 00:98:AB:77:08:0C

arp -d linux_old2
arp -s linux_old2 00:98:AB:77:08:0A

2)In linux_old1:

arp -d linux_new
arp -s linux_new 00:98:AB:77:08:0B

3)In linux_old2:

arp -d linux_new
arp -s linux_new 00:98:AB:77:08:0B

Now I am able to ping each other server.

But if I restart "linux_new" the above entries removed automaticallt from ARP table.

My Questions:

1)How to make this persistent?

2)Is there any other way to solve this issue?

Re: ARP table is not getting updated in Suse linux

senthil_kumar_1 — Thu, 23 Dec 2010 07:02:16 GMT

Hi All,

I faced the same above mentioned issue in Redhat 5.5 also with other blade connected in same chassis.

Could any one please give me a solution.

Re: ARP table is not getting updated in Suse linux

senthil_kumar_1 — Thu, 23 Dec 2010 14:13:32 GMT

Hi All,

I have some questions.

1)Will it resolve the issue if we are doing network card teaming (bonding)?

2)Will it resolve the issue if we are installing the OS through "HP smart start CD"?

3)Is there any tool for linux like "HP network configuration tool"?

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ARP table is not getting updated in Suse linux

Re: ARP table is not getting updated in Suse linux

Re: ARP table is not getting updated in Suse linux