Error while configuring IP in ifcfg-eth0 on Linux Server “RTNETLINK answers: network is unreachable”

  • This error may arise if the IP address and Gateway subnets are different. Make sure both IP address and Gateway have the same subnets. For reference, the ifcfg-eth0 configuration file is given below.

TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="none"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="eth0"
UUID="3d9bd3c7-310c-4e46-a57c-5b3a99819f78"
DEVICE="eth0"
ONBOOT="yes"
IPADDR="37.48.96.245"
PREFIX="27"
GATEWAY="37.48.96.254"
DNS1="8.8.8.8"
IPV6_PRIVACY="no"

  • Remove route entry from etc/sysconfig/network-scripts/route file.

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