From: "Owain McGuire" <owain@ofrm.demon.co.uk>
To: linux-diald@vger.kernel.org
Subject: tap0 or ppp0?
Date: Fri, 21 Mar 2003 17:01:07 -0000 [thread overview]
Message-ID: <009d01c2efcb$778cf040$0200000a@tower> (raw)
Simple question really??
I have upgraded from diald 0.9 to 1.0 and sorted out all of the
ethertap stuff. The only thing is that the masqueraded machines don't
seem to be able to bring up the ppp connections themselves. The
"server" machine can though. I have followed the IP_Masq_Howto for
2.4 kernels but I have a question for the rc.firewall-2.4 script.
Should the external interface be tap0 or ppp0? I am confused as to
how the flow or handoever of traffic from tap0 to ppp0 works.
I currently have it set to ppp0 which seems fine when the link is up
since ifconfig gives me:
ppp0 Link encap:Point-to-Point Protocol
inet addr:158.152.189.169 P-t-P:158.152.1.222
Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:3520 errors:0 dropped:0 overruns:0 frame:0
TX packets:3294 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:1531219 (1.4 Mb) TX bytes:250596 (244.7 Kb)
tap0 Link encap:Ethernet HWaddr FE:FD:00:00:00:00
UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:142 (142.0 b) TX bytes:142 (142.0 b)
Interrupt:5
But when the link is down it is:
tap0 Link encap:Ethernet HWaddr FE:FD:00:00:00:00
inet addr:158.152.189.169 Bcast:0.0.0.0
Mask:255.255.255.255
UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:142 (142.0 b) TX bytes:142 (142.0 b)
Interrupt:5
which suggests that ppp0 as an external interface is wrong.
Or is it that my default route isn't set up correctly? Should it not
point to tap0?
Destination Gateway Genmask Flags Metric Ref
Use Iface
demon-du.demon. * 255.255.255.255 UH 0 0
0 ppp0
10.0.0.0 * 255.255.255.0 U 0 0
0 eth0
loopnet * 255.0.0.0 U 0 0
0 lo
default * 0.0.0.0 U 0 0
0 ppp0
Thanks in advance.
O.
next reply other threads:[~2003-03-21 17:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-21 17:01 Owain McGuire [this message]
2003-03-22 2:02 ` tap0 or ppp0? Mark Frey
2003-03-30 23:22 ` Mike Jagdis
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