localhost가 등록이 안된것 아닌가요?

그리고..........질문이 제가 이해가 약간 이해가 안되네요...ㅠ.ㅠ

뭘 어디서 어떻게 해 봤다는지에 대한 글이 없어서요...

network stack이 disable 상태가 아니면 위 증상이 발생하기 힘듭니다.

자기 자신한테 보내는 packet은 ethernet이 없더라도 발생은 해야합니다.

device drivers 설정에서 loopback device가 활성화 되었는지 확인 부탁드립니다.

외부 디바이스는 동작하네요......

음.....이럼 커널 옵션 중에 머가 하나 빠진 것인데요....쩝

kernel network option 이 제거는 이렇게 되어 있습니다.

#

# Networking options

#

CONFIG_PACKET=y

CONFIG_UNIX=y

CONFIG_XFRM=y

# CONFIG_XFRM_USER is not set

# CONFIG_XFRM_SUB_POLICY is not set

# CONFIG_XFRM_MIGRATE is not set

# CONFIG_XFRM_STATISTICS is not set

CONFIG_XFRM_IPCOMP=y

CONFIG_NET_KEY=y

# CONFIG_NET_KEY_MIGRATE is not set

CONFIG_INET=y

CONFIG_IP_MULTICAST=y

CONFIG_IP_ADVANCED_ROUTER=y

# CONFIG_IP_FIB_TRIE_STATS is not set

CONFIG_IP_MULTIPLE_TABLES=y

# CONFIG_IP_ROUTE_MULTIPATH is not set

# CONFIG_IP_ROUTE_VERBOSE is not set

CONFIG_IP_PNP=y

CONFIG_IP_PNP_DHCP=y

CONFIG_IP_PNP_BOOTP=y

CONFIG_IP_PNP_RARP=y

CONFIG_NET_IPIP=y

CONFIG_NET_IPGRE_DEMUX=y

앞부분만요.......

아~

ifconfig lo up 하니까 제대로 되네요..

답변주신 모든 분들께 감사드립니다.~

혹시 비슷한 경우 있으시면 참고하세요~~

ㅠ.ㅠ.....................

root filesystem 누가 구성했는지 잡아다가 족치세요.......ㅠ.ㅠ

(본인이시면..........참회를....ㅎㅎ)

여하튼 잘되었네요.

저는 부팅 때.....이런 스크립트를 사용합니다. 

참고하시기 바랍니다.

------------------------------------------------------------

#! /bin/sh

#

# rc.inet1 This shell script boots up the base INET system.

#

# Version: @(#)/etc/rc.d/rc.inet1 2.00 10/06/1999

#

HOSTNAME=`cat /etc/HOSTNAME`

# Attach the loopback device.

/sbin/ifconfig lo 127.0.0.1

/sbin/route add -net 127.0.0.0 netmask 255.0.0.0 lo

# IF YOU HAVE AN ETHERNET CONNECTION, use these lines below to configure the 

# eth0 interface.

# Edit these values to set up a static IP address:

IPADDR="220.78.49.205" # REPLACE with YOUR IP address!

NETMASK="255.255.255.128" # REPLACE with YOUR netmask!

NETWORK="220.78.49.0" # REPLACE with YOUR network address!

BROADCAST="220.78.49.255" # REPLACE with YOUR broadcast address, if you

# have one. If not, leave blank and edit below.

GATEWAY="220.78.49.252" # REPLACE with YOUR gateway address!

# To use DHCP instead of a static IP, set this value to "yes":

DHCP="no"            # Use DHCP ("yes" or "no")

# OK, time to set up the interface:

if [ "$DHCP" = "yes" ]; then # use DHCP to set everything up:

  echo "Attempting to configure eth0 by contacting a DHCP server..."

  /sbin/dhcpcd 

elif [ ! "$IPADDR" = "127.0.0.1" ]; then # set up IP statically:

  # Set up the ethernet card:

  echo "Configuring eth0 as ${IPADDR}..."

  /sbin/ifconfig eth0 ${IPADDR} broadcast ${BROADCAST} netmask ${NETMASK}

  # If that didn't succeed, give the system administrator some hints:

  if [ ! $? = 0 ]; then

    cat << EOF

Your ethernet card was not initialized properly.  Here are some reasons why this

may have happened, and the solutions:

1. Your kernel does not contain support for your card.  Including all the 

   network drivers in a Linux kernel can make it too large to even boot, and

   sometimes including extra drivers can cause system hangs.  To support your

   ethernet, either edit /etc/rc.d/rc.modules to load the support at boottime,

   or compile and install a kernel that contains support.

2. You don't have an ethernet card, in which case you should comment out this

   section of /etc/rc.d/rc.inet1.  (Unless you don't mind seeing this error...)

EOF

  fi

  # Older kernel versions need this to set up the eth0 routing table:

  KVERSION=`uname -r | cut -f 1,2 -d .`

  if [ "$KVERSION" = "1.0" -o "$KVERSION" = "1.1" \

   -o "$KVERSION" = "1.2" -o "$KVERSION" = "2.0" -o "$KVERSION" = "" ]; then

    /sbin/route add -net ${NETWORK} netmask ${NETMASK} eth0

  fi

  # If there is a gateway defined, then set it up:

  if [ ! "$GATEWAY" = "" ]; then

    /sbin/route add default gw ${GATEWAY} netmask 0.0.0.0 metric 1

  fi

fi

# End of rc.inet1

감사합니다.. 많은 도움 되었습니다.