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Dialup / Static IP

Hello guys,

I recenting got 6 IPs to use with my ISP for dialup. I run Debian and using pppconfig to configure the connection. I just am not sure why it's not working.

I set the IP static <address>:<local ip> and doesn't work. I have also tried just the <address>: as specified and that doesn't work either. When I dialup without this the ip defaults to the lower of the range given.

What am I missing here?

Re: Dialup / Static IP

Quote:

Originally posted by colabus
Hello guys,

I recenting got 6 IPs to use with my ISP for dialup. I run Debian and using pppconfig to configure the connection. I just am not sure why it's not working.

I set the IP static <address>:<local ip> and doesn't work. I have also tried just the <address>: as specified and that doesn't work either. When I dialup without this the ip defaults to the lower of the range given.

What am I missing here?

I don't exactly understand, but maybe that is because it is late, and I'm not very experienced with Linux, but one of the thing you could begin with is to contact your ISP, maybe they have an answer...

Quote:

I recenting got 6 IPs to use with my ISP for dialup.

This seems to indicate some sort of special usage you may wish to explain.

howdy.. yea I think I may have been a little vague.

I have a static IP when I dialup and this is OK, lets say XXX.XXX.XXX.143

I also have XXX.XXX.XXX.145 - .150

.144 - network
.151 - broadcast

Now I have my local network going fine, 10.25.49.1/24 but I want to put them on net IPs.. I'm not sure how to do this cause I have also just used it was NAT.

My firewall I wrote is along the lines of

Code:

#!/bin/sh



iptables=/sbin/iptables

modprobe=/sbin/modprobe



# Flushing tables..

$iptables -F

$iptables -t nat -F



# MASQ rules for gateway



echo "1" > /proc/sys/net/ipv4/ip_forward

$iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE -s 10.25.49.0/24



# Loading modules



$modprobe ip_conntrack_irc

$modprobe ip_nat_irc

$modprobe ip_conntrack_ftp

$modprobe ip_nat_ftp



# Functions

ftpports () {

        case "$1" in

                permit)

                ;;



                forward)

                ;;

        esac

}



case "$1" in

        start|restart|reload)

                # PERMIT SELECTED PORTS

                $iptables -A INPUT -i ppp0 -p tcp --dport 22 -j ACCEPT

                $iptables -A INPUT -i ppp0 -p tcp --dport 80 -j ACCEPT

                $iptables -A INPUT -i ppp0 -p tcp --dport 113 -j ACCEPT

                ftpports permit



                # ALLOW INCOMING BASED ON EXISTING

                $iptables -A INPUT -m state --state NEW -i ! ppp0 -j ACCEPT

                $iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT



                # BLOCK REMAINING

                $iptables -A INPUT -i ppp0 -p all -j DROP



                # ETHERNET PORT FORWARDING

                $iptables -t nat -A PREROUTING -p tcp --dport 113 -j DNAT --to 10.25.49.195:113

                ftpports forward

                echo "Firewall rules loaded successfully!"

                ;;



        stop|kill|drop)

                echo "Firewall rules unloaded successfully!"

                ;;



        paranoid|insane)

                # ALLOW INCOMING SSH

                $iptables -A INPUT -i ppp0 -p tcp --dport 22 -j ACCEPT



                # BLOCK REMAINING

                $iptables -A INPUT -i ppp0 -p all -j DROP

                echo "Firewall rules loaded successfully! Only allowing SSH connections."

                ;;



        *)

                echo "Usage: /etc/init.d/firewall (start|stop|reload|restart|paranoid)"

                exit 1

                ;;



esac



exit 0

I haven't adjusted this since getting the static IPs. I was told by a friend to setup eth0 on that static IP, and then eth0:0 as the local network IP.

Any tips or ideas, please let me know :)

ignore this thread now.. I worked out the problem in the end, wasn't thinking about it right.

Cheers