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blossa
Apprentice
Joined: 13 Jan 2005
Posts: 169
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 Posted: Thu Feb 01, 2007 6:02 am Post subject: Static IP stopped working after upgrade |
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Hi!
I have been away from Gentoo for a while but yesterday I finally did that 'emerge -uD world'.  That was the first time for about six month.
So, before network did work. After the upgrade it does not. I have a router here at home that I can no longer ping. 'ifconfig eth0' gives me the IP and netmask that I provided the eth0.
I am not near that computer so I can not check my setting, but:
*I did not change any settings during the upgrade.
*I have looked in '/etc/conf.d/net' and it seems ok.
*I have looked in '/etc/resolv.conf'
*I have looked in '/etc/conf.d/hostname'
The only thing I noticed the I might had to change the way I tell what gateway-IP I want to use. I think it was like
before: routes_eth0=("192.168.1.1")
now: routes_eth0=("default via 192.168.1.1")
Anyway, what ever I try i do not work.
I also have configured some dns-IP that my ISP uses, but since I have not changed that setting it should be ok?
/etc/init.d/net.eth0 IS started at boot (default) and even with a '/etc/init.d/net.eth0 restart' it seems ok.
I do believe that it is not a hardware problem.
So, where do I look next? Can it be something with hostname? Any help would be appriciated. I do believe that there has been some change in how I should set up my network, but in what way should I do I different?
Thank in advance!
/ Anders
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derverstand
Guru
Joined: 15 Dec 2005
Posts: 511
Location: /dev/null
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| Posted: Thu Feb 01, 2007 9:25 am Post subject: |
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Had the same problem some time ago. Please try this one:
| Code: |
###
#PUT IN /lib/rcscripts/net (fixes error with routes in net)
###########################################################
# Copyright (c) 2004-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# Contributed by Roy Marples (uberlord@gentoo.org)
# Fix any potential localisation problems
# Note that LC_ALL trumps LC_anything_else according to locale(7)
ifconfig() {
LC_ALL=C /sbin/ifconfig "$@"
}
ifconfig_tunnel() {
LC_ALL=C /sbin/iptunnel "$@"
}
route() {
LC_ALL=C /sbin/route "$@"
}
# void ifconfig_depend(void)
#
# Sets up the dependancies for the module
ifconfig_depend() {
provide interface
}
# void ifconfig_expose(void)
#
# Expose variables that can be configured
ifconfig_expose() {
variables config routes fallback metric ifconfig \
ifconfig_fallback routes inet6 iface alias broadcast netmask
}
# bool ifconfig_check_installed(void)
#
# Returns 1 if ifconfig is installed, otherwise 0
ifconfig_check_installed() {
[[ -x /sbin/ifconfig ]] && return 0
${1:-false} && eerror "For ifconfig support, emerge sys-apps/net-tools"
return 1
}
# bool ifconfig_exists(char *interface, bool report)
#
# Returns 1 if the interface exists, otherwise 0
ifconfig_exists() {
local e=$(ifconfig -a | grep -o "^$1") report="${2:-false}"
[[ -n ${e} ]] && return 0
if ${report} ; then
eerror "network interface $1 does not exist"
eerror "Please verify hardware or kernel module (driver)"
fi
return 1
}
# char* cidr2netmask(int cidr)
#
# Returns the netmask of a given CIDR
cidr2netmask() {
local cidr="$1" netmask="" done=0 i sum=0 cur=128
local octets= frac=
(( octets=cidr/8 ))
(( frac=cidr%8 ))
while [[ octets -gt 0 ]] ; do
netmask="${netmask}.255"
(( octets-- ))
(( done++ ))
done
if [[ ${done} -lt 4 ]] ; then
for (( i=0; i<${frac}; i++ )); do
(( sum+=cur ))
(( cur/=2 ))
done
netmask="${netmask}.${sum}"
(( done++ ))
while [[ ${done} -lt 4 ]] ; do
netmask="${netmask}.0"
(( done++ ))
done
fi
echo "${netmask:1}"
}
# void ifconfig_up(char *iface)
#
# provides a generic interface for bringing interfaces up
ifconfig_up() {
ifconfig "$1" up
}
# void ifconfig_down(char *iface)
#
# provides a generic interface for bringing interfaces down
ifconfig_down() {
ifconfig "$1" down
}
# bool ifconfig_is_up(char *iface, bool withaddress)
#
# Returns 0 if the interface is up, otherwise 1
# If withaddress is true then the interface has to have an IPv4 address
# assigned as well
ifconfig_is_up() {
local check="\<UP\>" addr="${2:-false}"
${addr} && check="\<inet addr:.*${check}"
ifconfig "$1" | tr '\n' ' ' | grep -Eq "${check}" && return 0
return 1
}
# void ifconfig_set_flag(char *iface, char *flag, bool enabled)
#
# Sets or disables the interface flag
ifconfig_set_flag() {
local iface="$1" flag="$2" enable="$3"
${enable} || flag="-${flag}"
ifconfig "${iface}" "${flag}"
}
# void ifconfig_get_address(char *interface)
#
# Fetch the address retrieved by DHCP. If successful, echoes the
# address on stdout, otherwise echoes nothing.
ifconfig_get_address() {
local -a x=( $( ifconfig "$1" \
| sed -n -e 's/.*inet addr:\([^ ]*\).*Mask:\([^ ]*\).*/\1 \2/p' ) )
x[1]=$(netmask2cidr "${x[1]}")
[[ -n ${x[0]} ]] && echo "${x[0]}/${x[1]}"
}
# bool ifconfig_is_ethernet(char *interface)
#
# Return 0 if the link is ethernet, otherwise 1.
ifconfig_is_ethernet() {
ifconfig "$1" | grep -q "^$1[[:space:]]*Link encap:Ethernet[[:space:]]"
}
# void ifconfig_get_mac_address(char *interface)
#
# Fetch the mac address assingned to the network card
ifconfig_get_mac_address() {
local mac=$(ifconfig "$1" | sed -n -e \
's/.*HWaddr[ \t]*\<\(..:..:..:..:..:..\)\>.*/\U\1/p')
[[ ${mac} != '00:00:00:00:00:00' \
&& ${mac} != '44:44:44:44:44:44' \
&& ${mac} != 'FF:FF:FF:FF:FF:FF' ]] \
&& echo "${mac}"
}
# void ifconfig_set_mac_address(char *interface, char *mac)
#
# Assigned the mac address to the network card
ifconfig_set_mac_address() {
ifconfig "$1" hw ether "$2"
}
# int ifconfig_set_name(char *interface, char *new_name)
#
# Renames the interface
# This will not work if the interface is setup!
ifconfig_set_name() {
[[ -z $2 ]] && return 1
local current="$1" new="$2"
local mac=$(ifconfig_get_mac_address "${current}")
if [[ -z ${mac} ]]; then
eerror "${iface} does not have a MAC address"
return 1
fi
/sbin/nameif "${new}" "${mac}"
}
# void ifconfig_get_aliases_rev(char *interface)
#
# Fetch the list of aliases for an interface.
# Outputs a space-separated list on stdout, in reverse order, for
# example "eth0:2 eth0:1"
ifconfig_get_aliases_rev() {
ifconfig | grep -o "^$1:[0-9]* " | tac
}
# bool ifconfig_del_addresses(char *interface, bool onlyinet)
#
# Remove addresses from interface. Returns 0 (true) if there
# were addresses to remove (whether successful or not). Returns 1
# (false) if there were no addresses to remove.
# If onlyinet is true then we only delete IPv4 / inet addresses
ifconfig_del_addresses() {
local iface="$1" i= onlyinet="${2:-false}"
# We don't remove addresses from aliases
[[ ${iface} == *:* ]] && return 0
# If the interface doesn't exist, don't try and delete
ifconfig_exists "${iface}" || return 0
# iproute2 can add many addresses to an iface unlike ifconfig ...
# iproute2 added addresses cause problems for ifconfig
# as we delete an address, a new one appears, so we have to
# keep polling
while ifconfig "${iface}" | grep -q -m1 -o 'inet addr:[^ ]*' ; do
ifconfig "${iface}" 0.0.0.0 || break
done
# Remove IPv6 addresses
if ! ${onlyinet} ; then
for i in $( ifconfig "${iface}" \
| sed -n -e 's/^.*inet6 addr: \([^ ]*\) Scope:[^L].*/\1/p' ) ; do
/sbin/ifconfig "${iface}" inet6 del "${i}"
done
fi
return 0
}
# bool ifconfig_get_old_config(char *iface)
#
# Returns config and config_fallback for the given interface
ifconfig_get_old_config() {
local iface="$1" ifvar=$(bash_variable "$1") i= inet6=
config="ifconfig_${ifvar}[@]"
config=( "${!config}" )
config_fallback="ifconfig_fallback_${ifvar}[@]"
config_fallback=( "${!config_fallback}" )
inet6="inet6_${ifvar}[@]"
inet6=( "${!inet6}" )
# BACKWARD COMPATIBILITY: populate the config_IFACE array
# if iface_IFACE is set (fex. iface_eth0 instead of ifconfig_eth0)
i="iface_${ifvar}"
if [[ -n ${!i} && -z ${config} ]]; then
# Make sure these get evaluated as arrays
local -a aliases=() broadcasts=() netmasks=()
# Start with the primary interface
config=( "${!i}" )
# ..then add aliases
aliases="alias_${ifvars}"
aliases=( ${!aliases} )
broadcasts="broadcast_${ifvar}"
broadcasts=( ${!broadcasts} )
netmasks="netmask_${ifvar}"
netmasks=( ${!netmasks} )
for (( i=0; i<${#aliases[@]}; i++ )); do
config[i+1]="${aliases[i]} ${broadcasts[i]:+broadcast ${broadcasts[i]}} ${netmasks[i]:+netmask ${netmasks[i]}}"
done
fi
# BACKWARD COMPATIBILITY: check for space-separated inet6 addresses
[[ ${#inet6[@]} == 1 && ${inet6} == *' '* ]] && inet6=( ${inet6} )
# Add inet6 addresses to our config if required
[[ -n ${inet6} ]] && config=( "${config[@]}" "${inet6[@]}" )
# BACKWARD COMPATIBILITY: set the default gateway
if [[ ${gateway} == "${iface}/"* ]]; then
i="routes_${ifvar}[@]"
local -a routes=( "${!i}" )
# We don't add the old gateway if one has been set in routes_IFACE
local gw=true
for i in "${routes[@]}"; do
[[ ${i} != *"default gw"* ]] && continue
gw=false
break
done
if ${gw} ; then
eval "routes_${ifvar}=( \"default gw \${gateway#*/}\" \"\${routes[@]}\" )"
fi
fi
return 0
}
# bool ifconfig_iface_stop(char *interface)
#
# Do final shutdown for an interface or alias.
#
# Returns 0 (true) when successful, non-zero (false) on failure
ifconfig_iface_stop() {
# If an alias is already down, then "ifconfig eth0:1 down"
# will try to bring it up with an address of "down" which
# fails. Do some double-checking before returning error
# status
ifconfig_is_up "$1" || return 0
ifconfig_down "$1" && return 0
# It is sometimes impossible to transition an alias from the
# UP state... particularly if the alias has no address. So
# ignore the failure, which should be okay since the entire
# interface will be shut down eventually.
[[ $1 == *:* ]] && return 0
return 1
}
# bool ifconfig_pre_start(char *interface)
#
# Runs any pre_start stuff on our interface - just the MTU atm
# We set MTU twice as it may be needed for DHCP - a dhcp client could
# change it in error, so we set MTU in post start too
ifconfig_pre_start() {
local iface="$1"
interface_exists "${iface}" || return 0
local ifvar=$(bash_variable "$1") mtu=
# MTU support
mtu="mtu_${ifvar}"
[[ -n ${!mtu} ]] && ifconfig "${iface}" mtu "${!mtu}"
return 0
}
# bool ifconfig_post_start(char *iface)
#
# Bring up iface using ifconfig utilities, called from iface_start
#
# Returns 0 (true) when successful on the primary interface, non-zero
# (false) when the primary interface fails. Aliases are allowed to
# fail, the routine should still return success to indicate that
# net.eth0 was successful
ifconfig_post_start() {
local iface="$1" ifvar=$(bash_variable "$1") x= y= metric= mtu=
local -a routes=()
metric="metric_${ifvar}"
ifconfig_exists "${iface}" || return 0
# Make sure interface is marked UP
ifconfig_up "${iface}"
# MTU support
mtu="mtu_${ifvar}"
[[ -n ${!mtu} ]] && ifconfig "${iface}" mtu "${!mtu}"
x="routes_${ifvar}[@]"
routes=( "${!x}" )
[[ -z ${routes} ]] && return 0
# Add routes for this interface, might even include default gw
einfo "Adding routes"
eindent
for x in "${routes[@]}"; do
ebegin "${x}"
# Support iproute2 style routes
x="${x//via/gw} "
x="${x//scope * / }"
# Work out if we're a host or a net if not told
if [[ " ${x} " != *" -net "* && " ${x} " != *" -host "* ]] ; then
y="${x%% *}"
if [[ ${y} == *.*.*.* && ${y} != *.*.*.0 && ${y} != *.*.*.0/* ]] ; then
x="-host ${x}"
else
x="-net ${x}"
fi
fi
# Support adding IPv6 addresses easily
if [[ ${x} == *:* ]]; then
[[ ${x} != *"-A inet6"* ]] && x="-A inet6 ${x}"
x="${x// -net / }"
fi
# Add a metric if we don't have one
[[ ${x} != *" metric "* ]] && x="${x} metric ${!metric}"
route add ${x} dev "${iface}"
eend $?
done
eoutdent
return 0
}
# bool ifconfig_add_address(char *iface, char *options ...)
#
# Adds the given address to the interface
ifconfig_add_address() {
local iface="$1" i=0 r= e= real_iface=$(interface_device "$1")
ifconfig_exists "${real_iface}" true || return 1
# Extract the config
local -a config=( "$@" )
config=( ${config[@]:1} )
if [[ ${config[0]} == *:* ]]; then
# Support IPv6 - nice and simple
config[0]="inet6 add ${config[0]}"
else
# IPv4 is tricky - ifconfig requires an aliased device
# for multiple addresses
if ifconfig "${iface}" | grep -Eq "\<inet addr:.*" ; then
# Get the last alias made for the interface and add 1 to it
i=$(ifconfig | tac | grep -m 1 -o "^${iface}:[0-9]*" \
| sed -n -e 's/'"${iface}"'://p')
i="${i:-0}"
(( i++ ))
iface="${iface}:${i}"
fi
# ifconfig doesn't like CIDR addresses
local ip="${config[0]%%/*}" cidr="${config[0]##*/}" netmask=
if [[ -n ${cidr} && ${cidr} != "${ip}" ]]; then
netmask=$(cidr2netmask "${cidr}")
config[0]="${ip} netmask ${netmask}"
fi
# Support iproute2 style config where possible
r="${config[@]}"
config=( ${r//brd +/} )
config=( "${config[@]//brd/broadcast}" )
config=( "${config[@]//peer/pointopoint}" )
fi
# Ensure that the interface is up so we can add IPv6 addresses
interface_up "${real_iface}"
# Some kernels like to apply lo with an address when they are brought up
if [[ ${config[@]} == "127.0.0.1 netmask 255.0.0.0 broadcast 127.255.255.255" ]]; then
is_loopback "${iface}" && ifconfig "${iface}" 0.0.0.0
fi
ifconfig "${iface}" ${config[@]}
}
# vim: set ts=4 :
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/BR |
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blossa
Apprentice
Joined: 13 Jan 2005
Posts: 169
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| Posted: Thu Feb 01, 2007 9:39 am Post subject: |
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 Ok, that I would never had thought of. I will compare it with mine and if I can fix it I will post the changes here.
Thanks mate!
P.S. The /etc/conf.d/net.example is more into DHCP and wireless... Is it possible to include an complete example of static-settings in the future?
Regards / Anders
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QX9650, P5E64WS Pro, 4x1GB |
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