Do you have the machines directly connected or are they part of a network (LAN)? On Nov 10, 2013 11:40 PM, "Edison, Arul (GE Healthcare)" < [log in to unmask]> wrote: > Hi , > When this issue happens, ping is not working > Regards, > Arul > > > -----Original Message----- > From: Orion Poplawski [mailto:[log in to unmask]] > Sent: Saturday, November 09, 2013 3:54 AM > To: Edison, Arul (GE Healthcare); [log in to unmask] > Subject: Re: "arp who-has" tcp message not received in my SL6.3 system > > On 11/07/2013 12:13 AM, Edison, Arul (GE Healthcare) wrote: > > Hi Everyone, > > I port my application to SL6.3 > > My SL6.3 PC is connected with another device over Ethernet cable. > With the application ported on SL6.3, the device is not able to communicate > with my application > > When I compare the tcpdata exchanged between my PC and device, The > below message , that is sent first from the device to my PC is not seen at > my SL6.3 PC now. > > I have checked the rpms installed in my system. rarpd rpm is not > > installed > > > > 11:53:36.359556 arp who-has 192.168.2.30 tell 192.168.2.1 > > 0x0000: 0001 0800 0604 0001 000b ab2b 595a c0a8 ...........+YZ.. > > 0x0010: 0201 0000 0000 0000 c0a8 021e ............ > > 11:53:36.359604 arp who-has 192.168.2.30 tell 192.168.2.1 > > 0x0000: 0001 0800 0604 0001 000b ab2b 595a c0a8 ...........+YZ.. > > 0x0010: 0201 0000 0000 0000 c0a8 021e ............ > > 11:53:36.359645 arp who-has 192.168.2.30 tell 192.168.2.1 > > 0x0000: 0001 0800 0604 0001 000b ab2b 595a c0a8 ...........+YZ.. > > 0x0010: 0201 0000 0000 0000 c0a8 021e ............ > > > > > > I would appreciate suggestions on how to make my SL6.3 PC receive > > "arp who-has" message > > > > Regards, Arul > > > > You have some pretty basic connectivity issues between the two machines. > Can you ping each other? Are the netmasks correct? > > -- > Orion Poplawski > Technical Manager 303-415-9701 x222 > NWRA, Boulder/CoRA Office FAX: 303-415-9702 > 3380 Mitchell Lane [log in to unmask] > Boulder, CO 80301 http://www.nwra.com >