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Asked: 2012-10-05 21:36:40 +0800 CST

How do I rename a NIC: eth2 -> eth1

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I've installed a new NIC. It shows up as eth2. I'd like it to be eth1. How I can do this?

linux

2 Answers

  1. Best Answer

    edit /etc/udev/rules.d/70-persistent-net.rules

    You may have something like:

    # PCI device 0x14e4:0x165a (tg3)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:22:19:07:90:e4", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x10ec:0x8139 (8139too)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0a:79:b8:72:7d", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x10ec:0x8169 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:24:a5:84:de:62", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"

    Remove the line ending with NAME="eth1" and rename eth2 to eth1 as such:

    # PCI device 0x14e4:0x165a (tg3)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:22:19:07:90:e4", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x10ec:0x8169 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:24:a5:84:de:62", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

    reboot

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  2. The configuration for your interfaces on Red Hat distros, should be located in:

    /etc/sysconfig/network-scripts

    You will want to look for the appropriate script for your interface to modify.

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