[3552] in linux-net channel archive
Re: PPP and two boxes???
daemon@ATHENA.MIT.EDU (Hubert A. Bahr)
Mon Jul 1 01:11:19 1996
Date: Mon, 01 Jul 1996 00:50:37 +0000
From: "Hubert A. Bahr" <hab@ece.engr.ucf.edu>
To: "Douglas F. Elznic" <delznic@axess.net>
CC: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-net@vger.rutgers.edu,
linux-ppp@vger.rutgers.edu
Douglas F. Elznic wrote:
>
> At 08:08 PM 6/30/96 +0100, Alan Cox wrote:
> >> i saw a product for win 95 to use a inet connection over a modem on wo
> >> different computers on the client side? Does this exist for Linux?
> >
> >Just about no other operating system needs a magic product for this kind
> >of thing. Linux will also do masquerading so you can have a whole networkon
> >one IP address (handy for security).
It sounds easy just compile in Firewall , fowarding, masquerading have Firewall host
working with PPP and with local ethernet then use ipfwadm to set up masq....
I've tried but here are my results nothing seems to be leaving.
Both systems 486's running 2.0.0 Firewall using ipfwadm 2.2.
Fire wall sees outside world fine. Local net sees firewall. What am I missing.
any clues please
bash# route
Kernel routing table
Destination Gateway Genmask Flags MSS Window Use Iface
207.30.3.3 * 255.255.255.255 UH 1500 0 0 ppp0
132.170.199.0 * 255.255.255.0 U 1500 0 0 eth0
127.0.0.0 * 255.0.0.0 U 3584 0 8 lo
default 207.30.3.3 * UG 1500 0 39 ppp0
bash# ipfwadm -Alen
IP accounting rules
pkts bytes dir prot opt ifname ifaddress source destination
ports
30 2520 in all ---- * 132.170.199.41 132.170.199.89 0.0.0.0/0
n/a
0 0 out all ---- * 132.170.199.41 132.170.199.89 0.0.0.0/0
n/a
0 0 out all ---- * 207.30.3.30 132.170.199.89 0.0.0.0/0
n/a
0 0 in all ---- * 207.30.3.30 132.170.199.89 0.0.0.0/0
n/a
bash# ipfwadm -Flen
IP firewall forward rules, default policy: accept
pkts bytes type prot opt tosa tosx ifname ifaddress source
destination ports
1347 113K acc/m all ---- 0xFF 0x00 * 207.30.3.30 132.170.199.89 0.0.0.0/0
n/a
0 0 acc/m all ---- 0xFF 0x00 * 0.0.0.0 132.170.199.89 0.0.0.0/0
n/a
0 0 acc/m all ---- 0xFF 0x00 * 0.0.0.0 132.170.199.42 0.0.0.0/0
n/a
bash# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:589 errors:0 dropped:0 overruns:0
TX packets:589 errors:0 dropped:0 overruns:0
eth0 Link encap:10Mbps Ethernet HWaddr 00:40:33:21:84:9F
inet addr:132.170.199.41 Bcast:132.170.199.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:26395 errors:0 dropped:0 overruns:0
TX packets:26439 errors:0 dropped:0 overruns:0
Interrupt:12 Base address:0x340
ppp0 Link encap:Point-Point Protocol
inet addr:207.30.3.30 P-t-P:207.30.3.3 Mask:255.255.255.0
UP POINTOPOINT RUNNING MTU:1500 Metric:1
RX packets:4303 errors:0 dropped:0 overruns:0
TX packets:4366 errors:0 dropped:0 overruns:0
bash# rlogin hbahrr
Last login: Sun Jun 30 23:25:54 from hbahr.bahr
Linux 2.0.0.
hbahrr:/# route -n
Kernel routing table
Destination Gateway Genmask Flags MSS Window Use Iface
132.170.199.0 * 255.255.255.0 U 1500 0 1 eth0
127.0.0.0 * 255.0.0.0 U 3584 0 1 lo
default 132.170.199.41 * UG 1500 0 1 eth0
hbahrr:/#
Hubert
