Fedora "Netstat -rn" reports an extra entry "169.254.0.0 ...."

[Guolin Cheng]

Hi, all,

 

 I got an additional entry when I run "netstat -rn" on my fedora host,
an "169.254.0.0 ..." entry appears without being invited. I know that
169.254.0.0/16 is a private address block for some kind of special
purposes, and it appears in "ifup" script, But my question is: what does
this entry mean?  And How to get rid of it if it does nothing except
bring security holes? Since it is routable now through my hosts' exneral
interface, ridicules..

 

[ root at example network-scripts ] netstat -rn

Kernel IP routing table

Destination     Gateway         Genmask         Flags   MSS Window  irtt
Iface

209.237.238.0   0.0.0.0         255.255.255.0   U         0 0          0
eth1

10.0.0.0        0.0.0.0         255.255.240.0   U         0 0          0
eth0

169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
eth1

127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0
lo

0.0.0.0         209.237.238.1   0.0.0.0         UG        0 0          0
eth1

[root at example network-scripts]# find . | xargs grep 169

./ifup:    ip route replace 169.254.0.0/16 dev ${REALDEVICE} 

./network-functions-ipv6:               # test 169.254.0.0/16 (APIPA /
DHCP link local)

./network-functions-ipv6:               /bin/ipcalc --network
$testipv4addr_globalusable 255.255.0.0 | LC_ALL=C grep -q
"NETWORK=169\.254\.0\.0" && return 10

 

Thanks.

--Guolin Cheng

 

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