Date: Thu, 15 Nov 2001 14:21:16 +0100 From: Tomi =?ISO-8859-2?Q?Malen=B9ek?= <tomi@t-media.si> To: freebsd-security@FreeBSD.ORG Subject: Question about PPP built-in NAT. Message-ID: <3BF3C14C.3000603@t-media.si>
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Hello all.
I use FreeBSD 4.4-RELEASE PC with our ADSL line to make internet
available to other LAN members. I do this by enabling pppnat in
/etc/rc.conf:
----
ppp_nat="YES" # if you want to enable nat for your local network
----
Everything work fine, but there is a little problem :) Our ADSL provider
forcibly disconnect every ADSL user on a 12 hour interval (to prevent
having static IP) so every 12 hour my FreeBSD box get new IP. But i
discover that FreeBSD remember every IP which ADSL device have. After a
few days of ruuning on a ADSL connection ifconfig shows that for ADSL
device:
----
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1492
inet6 fe80::280:adff:fe84:6d7e%tun0 prefixlen 64 scopeid 0x8
inet 213.250.63.162 --> 255.255.255.255 netmask 0xffffffff
inet 213.250.18.154 --> 255.255.255.255 netmask 0xffffffff
inet 213.250.63.99 --> 193.189.161.74 netmask 0xffffff00
Opened by PID 107
----
How to prevent FreeBSD to remember all IP's they have and use only the
last one? Because after a while, when a ADSL device get at least 3 or
more IP's internet stop working ans i need to reboot FreeBSD box. Is
there any better solution for box to work nonstop wothout rebooting?
Thank you for all answers.
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