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Beerke
n00b
Joined: 19 Apr 2003
Posts: 53
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 Posted: Sun Dec 28, 2003 5:15 pm Post subject: network settings at boot |
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Hi i need a way to make the following settings permanent
i got and adsl modem which runs the sip_spoof hack which means that my network card in the pc has the external ip adress
my ip addresses are as follows
| Code: |
adsl modem 10.0.0.138
external ip 80.126.152.xxx
internal network ip 192.168.1.10 |
when i boot up it fails to start up my external network card, cause it can't find a destination
| Code: | /etc/conf.d/net
iface_eth1="192.168.1.10 broadcast 192.168.1.255 netmask 255.255.255.0"
iface_eth0="80.126.152.xxx broadcast 255.255.255.255 netmask 255.255.255.255"
gateway="eth0/10.0.0.138" |
When i do it manually it works
| Code: | ifconfig eth0 80.126.152.xxx netmask 255.255.255.255 broadcast 255.255.255.255
route add 10.0.0.138 dev eth0
route add default gw 10.0.0.138 |
I got an example of how to do it in debian but don't know how to apply them in gentoo
| Code: | auto eth0
iface eth0 inet static
address 80.126.152.xxx
netmask 255.255.255.255
pointopoint 10.0.0.138
broadcast 255.255.255.255
gateway 10.0.0.138
up /sbin/iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to $IF_ADDRESS
down /sbin/iptables -t nat -D POSTROUTING -o $IFACE -j SNAT --to $IF_ADDRESS |
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HogRider
Apprentice
Joined: 29 May 2002
Posts: 160
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| Posted: Sun Dec 28, 2003 5:23 pm Post subject: Re: network settings at boot |
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Let's see if we can walk through this...
| Beerke wrote: |
<snip>
my ip addresses are as follows
| Code: |
adsl modem 10.0.0.138
external ip 80.126.152.xxx
internal network ip 192.168.1.10 |
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Notice the three ip addresses
| Beerke wrote: |
when i boot up it fails to start up my external network card, cause it can't find a destination
| Code: | /etc/conf.d/net
iface_eth1="192.168.1.10 broadcast 192.168.1.255 netmask 255.255.255.0"
iface_eth0="80.126.152.xxx broadcast 255.255.255.255 netmask 255.255.255.255"
gateway="eth0/10.0.0.138" |
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What it's not finding is a route to your default gateway.
| Beerke wrote: | When i do it manually it works
| Code: | ifconfig eth0 80.126.152.xxx netmask 255.255.255.255 broadcast 255.255.255.255
route add 10.0.0.138 dev eth0
route add default gw 10.0.0.138 |
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Notice you've added the route to your default gateway.
Now, the simple solution is to set eth0 to the 10.0.0.138 address. The 80.126.152.xxx address is the other end of a pppoe link (or so it appears), and your provider should take care of the routing. Alternitively, the 80.x add'y should be assigned to ppp0.
You've created a cludge in your manual config, which would probably work, but not properly.
Good luck.
_________________
Mike
"Computers are like air conditioners, they stop working properly if you open Windows"
perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
Last edited by HogRider on Mon Dec 29, 2003 12:02 am; edited 1 time in total |
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Beerke
n00b
Joined: 19 Apr 2003
Posts: 53
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| Posted: Sun Dec 28, 2003 8:13 pm Post subject: |
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| Quote: | | Now, the simple solution is to set eth0 to the 10.0.0.138 address. The 80.126.152.xxx address is the other end of a pptp link (or so it appears), and your provider should take care of the routing. |
If i do this this would mean that i must do NAT on my ADSL modem as on my SERVER. My ADSL modem is fully transparant. Normally the modem would carry the external ip (80.126.152.xx) but with this setup the external network card on the server gets the external ip. So i am not looking for the easy way, cause i already know how to do that. There are some reasons why this hack is done on this modem, one of them is that i can use traceroute.
As i have read it is possile to set it automagically on debian, it should also be possile to do it under gentoo. Yet i don't know how to do it. |
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HogRider
Apprentice
Joined: 29 May 2002
Posts: 160
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| Posted: Mon Dec 29, 2003 12:02 am Post subject: |
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If you're not running the pppoe from this box (sounds like you're running it from the modem) Then add an alias to the interface.
In '/etc/conf.d/net', define:
alias_eth0=10.x.x.x.....
This should do what you're asking. I found it easier to configure my modem for passthrough, and run the pppoe direct from my server, YMMV.
_________________
Mike
"Computers are like air conditioners, they stop working properly if you open Windows"
perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);' |
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Beerke
n00b
Joined: 19 Apr 2003
Posts: 53
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| Posted: Mon Jan 05, 2004 7:07 pm Post subject: |
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I tried doing the below but that doesn't seem to work
| Quote: | In '/etc/conf.d/net', define:
alias_eth0=10.x.x.x..... |
when i the try to ask my route it takes a long time before it brings up the routing table. It seems that is sending in a loop or something |
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