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Special Forums IP Networking Multihomed can not ping gateway Post 302285332 by vettec3 on Sunday 8th of February 2009 03:35:47 PM
Old 02-08-2009
The server is at a remote site therefore I cant connect my laptop.
But i think that once i used the same ip as the server and later a different ip.

I have the arp from the server and something is going on...

network-scripts]# arp -v
Address HWtype HWaddress Flags Mask Iface
10.18.110.1 (incomplete) eth2
172.21.65.23 ether 00:1B:78:58:ED:51 C eth1
Entries: 2 Skipped: 0 Found: 2


I belive that the incomplete part could be a problem but dont know how to
trouble shoot it.

This server had bonding setup at first and later I removed it by simply deleting the ifcfg-bondx files.
But It seems like the MAC in the eth1 inteface still has to do with bonding?
In the output of ifconfig I cant see 00:1B:78:58:ED:51 but in the arp it is there.

I looked in another similar server that uses bonding and it had the same MAC 00:1B:78:58:ED:51 as this one. Strange ?

Thanks in advance.
/Jan

Last edited by vettec3; 02-08-2009 at 06:27 PM.. Reason: aded part about bonding and the mac 00:1B:78:58:ED:51
 

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arp(8c) 																   arp(8c)

Name
       arp - address resolution display and control

Syntax
       arp -a [vmunix] [kmem]
       arp [-d] hostname
       arp -f filename
       arp -s hostname ether_addr [temp] [pub] [trail]

Description
       The program displays and modifies the Internet-to-Ethernet address translation tables used by the address resolution protocol

       The hostname is the name of the host system for which information will be displayed or modified.

       With no flags, the program displays the current ARP entry for hostname.

Options
       -a   Displays current Address Resolution Protocol (ARP) entries from the specified name list and core files (next arguments).  If not spec-
	    ified, uses and respectively.

       -d   Deletes the entry for the host specified by name (next argument).

       -f   Reads information from the specified file (next argument) and modifies entries accordingly.  Entries in the file should be of the fol-
	    lowing form, with argument meanings as given previously:
	    hostname ether_addr [ temp ] [ pub ] [ trail ]

       -s   Creates an ARP entry for the host called hostname with the Ethernet address ether_addr.  The Ethernet address is given as six hexadec-
	    imal bytes separated by colons.  The entry will be permanent unless the word temp is given in the command.	If the word pub is  given,
	    the  entry will be published.  That is, the system will act as an ARP server, responding to requests for hostname even though the host
	    address is not its own.  The word trail indicates that trailer encapsulations may be sent to this host.

See Also
       arp(4p), ifconfig(8c)

																	   arp(8c)
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