{"id":2697,"date":"2014-01-14T23:52:17","date_gmt":"2014-01-14T15:52:17","guid":{"rendered":"http:\/\/rmohan.com\/?p=2697"},"modified":"2014-01-14T23:57:02","modified_gmt":"2014-01-14T15:57:02","slug":"determining-if-ip-address-is-already-in-use-for-device-eth0-how-to-fix-the-issue-rhel-fedora-centos","status":"publish","type":"post","link":"https:\/\/mohan.sg\/?p=2697","title":{"rendered":"Determining if ip address is already in use for device eth0. how to fix the issue RHEL FEDORA CENTOS"},"content":{"rendered":"

[ OK ]
\n[root@cluster3 ~]# \/etc\/init.d\/network restart
\nShutting down interface eth0: [ OK ]
\nShutting down loopback interface: [ OK ]
\nBringing up loopback interface: [ OK ]
\nBringing up interface eth0: Determining if ip address 192.168.1.42 is already in use for device eth0…
\n [ OK ]
\n[root@cluster3 ~]# ifconfig
\neth0 Link encap:Ethernet HWaddr 00:0C:29:0C:E4:46
\n inet addr:192.168.1.42 Bcast:192.168.1.255 Mask:255.255.255.0
\n inet6 addr: fe80::20c:29ff:fe0c:e446\/64 Scope:Link
\n UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
\n RX packets:325 errors:0 dropped:0 overruns:0 frame:0
\n TX packets:266 errors:0 dropped:0 overruns:0 carrier:0
\n collisions:0 txqueuelen:1000
\n RX bytes:32433 (31.6 KiB) TX bytes:55836 (54.5 KiB)
\n Interrupt:19 Base address:0x2000<\/p>\n

lo Link encap:Local Loopback
\n inet addr:127.0.0.1 Mask:255.0.0.0
\n inet6 addr: ::1\/128 Scope:Host
\n UP LOOPBACK RUNNING MTU:16436 Metric:1
\n RX packets:0 errors:0 dropped:0 overruns:0 frame:0
\n TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
\n collisions:0 txqueuelen:0
\n RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)<\/p>\n

ADD ARPCHECK=no <\/strong><\/p>\n

[root@cluster3 ~]# vi \/etc\/sysconfig\/network-scripts\/ifcfg-eth0
\nDEVICE=”eth0″
\nBOOTPROTO=none
\nNM_CONTROLLED=”yes”
\nONBOOT=yes
\nTYPE=”Ethernet”
\nUUID=”aaf08461-bf96-4b7a-9ff0-07a5bd8d3259″
\nHWADDR=00:0C:29:0C:E4:46
\nIPADDR=192.168.1.42
\nPREFIX=24
\nNETMASK=255.255.255.0
\nGATEWAY=192.168.1.254
\nARPCHECK=no
\nDNS1=8.8.8.8
\nDEFROUTE=yes
\nIPV4_FAILURE_FATAL=yes
\nIPV6INIT=no
\nNAME=”System eth0″<\/p>\n","protected":false},"excerpt":{"rendered":"

[ OK ] [root@cluster3 ~]# \/etc\/init.d\/network restart Shutting down interface eth0: [ OK ] Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: Determining if ip address 192.168.1.42 is already in use for device eth0… [ OK ] [root@cluster3 ~]# ifconfig eth0 Link encap:Ethernet HWaddr […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/2697"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2697"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/2697\/revisions"}],"predecessor-version":[{"id":2698,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/2697\/revisions\/2698"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}