[H-GEN] I hate PPP
Monica Anthon
anthonm at ats.com.au
Wed Dec 3 08:49:29 EST 1997
Didn't realise, I am still logged in under my wife's account. Logging out
to log back in as myself would cause the link to drop and it could be any
number of hours before I got back in as my ISP gets a bit congested.
That's one of the main reasons that this is pissing me off so much.
10.10.10.200 is the eth0 address. ( I am using the class A private subnet
because it is easier to type and remember, so there )
[/root]$route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
203.20.132.2 0.0.0.0 255.255.255.255 UH 0 0 0
ppp0
10.10.10.0 0.0.0.0 255.255.255.0 U 0 0 33
eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 9 lo
0.0.0.0 203.20.132.2 0.0.0.0 UG 0 0 1
ppp0
All forwarding rules are set to accept atm ( I have commented out my rules
setups in the startup scripts )
[/root]$ipfwadm -Fln
IP firewall forward rules, default policy: accept
[/root]$ipfwadm -Iln
IP firewall input rules, default policy: accept
[/root]$ipfwadm -Oln
IP firewall output rules, default policy: accept
When I do a ping to 203.20.132.2 I see data going out, but rcv nothing back
Still doing this every 30 seconds too....at which point I *do* see incoming
data
Dec 2 23:17:23 linux pppd[13733]: rcvd [LCP EchoReq id=0x4 59 4c 5a b7]
Dec 2 23:17:23 linux pppd[13733]: sent [LCP EchoRep id=0x4 84 25 c9 ac]
Dec 2 23:17:54 linux pppd[13733]: rcvd [LCP EchoReq id=0x5 59 4c 5a b7]
Dec 2 23:17:54 linux pppd[13733]: sent [LCP EchoRep id=0x5 84 25 c9 ac]
Dec 2 23:18:23 linux pppd[13733]: rcvd [LCP EchoReq id=0x6 59 4c 5a b7]
Dec 2 23:18:23 linux pppd[13733]: sent [LCP EchoRep id=0x6 84 25 c9 ac]
I find this rather strange though...doing a tcpdump on ppp0 is showing
traffic on eth0 ??
[/root]$tcpdump -n -i ppp0
tcpdump: listening on ppp0
23:25:26.000000 10.10.10.201.1639 > 10.10.10.200.53: 6+ A? tams.com.au.
(35)
23:25:26.000000 0:0:e8:d8:ff:3 0:0:e8:31:94:9b 0021 63:
4500 003f a13b 0000 7f11 3689 0a0a 0ac9
cb14 8402 0668 0035 002b aa00 0006 0100
0001 0000 0000 0000 0474 616d 7303 636f
6d02 6175 0563 686f 6f6b 0000 0100 01
23:25:36.000000 0:0:e8:d8:ff:3 0:0:e8:31:94:9b 0021 63:
4500 003f a23b 0000 7f11 0902 0a0a 0ac9
cb0c b091 0668 0035 002b 7d79 0006 0100
0001 0000 0000 0000 0474 616d 7303 636f
6d02 6175 0563 686f 6f6b 0000 0100 01
23:25:46.000000 10.10.10.201.137 > 10.10.10.255.137: udp 50
23:25:47.000000 10.10.10.201.137 > 10.10.10.255.137: udp 50
23:25:47.000000 10.10.10.201.137 > 10.10.10.255.137: udp 50
23:25:48.000000 10.10.10.201.137 > 10.10.10.200.53: 221+ A? TAMS.COM.AU.
(40)
23:25:50.000000 10.10.10.201.137 > 10.10.10.200.53: 221+ A? TAMS.COM.AU.
(40)
23:25:51.000000 10.10.10.201.137 > 10.10.10.200.53: 221+ A? TAMS.COM.AU.
(40)
23:25:53.000000 0:0:e8:d8:ff:3 0:0:e8:31:94:9b 0021 46:
4500 002c a93b 4000 7f06 eea6 0a0a 0ac9
cb14 8402 0666 006e 017e 6adf 0000 0000
6002 2000 a10b 0000 0204 05b4 2000
23:25:56.000000 0:0:e8:d8:ff:3 0:0:e8:31:94:9b 0021 46:
4500 002c aa3b 4000 7f06 eda6 0a0a 0ac9
cb14 8402 0666 006e 017e 6adf 0000 0000
6002 2000 a10b 0000 0204 05b4 2000
23:26:02.000000 0:0:e8:d8:ff:3 0:0:e8:31:94:9b 0021 46:
4500 002c ab3b 4000 7f06 eca6 0a0a 0ac9
cb14 8402 0666 006e 017e 6adf 0000 0000
6002 2000 a10b 0000 0204 05b4 2000
23:26:08.000000 10.10.10.201.1121 > 10.10.10.200.23: P 14680767:14680768(1)
ack 981645766 win 7475 (DF)
23:26:09.000000 10.10.10.201.1121 > 10.10.10.200.23: P 1:2(1) ack 2 win
7474 (DF)
23:26:09.000000 10.10.10.201.1121 > 10.10.10.200.23: P 2:3(1) ack 3 win
7473 (DF)
23:26:09.000000 10.10.10.201.1121 > 10.10.10.200.23: . ack 5 win 7471 (DF)
23:26:09.000000 10.10.10.201.1121 > 10.10.10.200.23: . ack 2291 win 8760
(DF)
23:26:09.000000 10.10.10.201.1121 > 10.10.10.200.23: . ack 3820 win 8760
(DF)
23:26:09.000000 10.10.10.201.1121 > 10.10.10.200.23: . ack 3824 win 8756
(DF)
23:26:16.000000 0:0:e8:d8:ff:3 0:0:e8:31:94:9b 0021 46:
4500 002c b33b 4000 7f06 e4a6 0a0a 0ac9
cb14 8402 0666 006e 017e 6adf 0000 0000
6002 2000 a10b 0000 0204 05b4 2000
Regards
Michael Anthon
PGP Key available http:\\ats.com.au\~anthonm\MichaelAnthon.asc
On Wednesday, December 03, 1997 11:10 PM, Anthony Towns
[SMTP:aj at humbug.org.au] wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
>
> On Wed, 3 Dec 1997, Monica Anthon wrote:
> ^^^^^^
> The sex change operation worked, then, I take it? ;)
>
> > My PPP is dead.
>
> PPP's a pain. We should all be given ethernet (_not_ ISDN. apparently
> that's worse to setup, eh James?) connections to the Internet for
> mental health reasons.
>
> > The problem is that once it is established, I cannot connect to
anything
> > outside of my LAN. Pinging 203.20.132.2 doesn't work,
>
> [203.20.132.2 is the remote point as reported by pppd]
>
> It obviously should. What's your route statement look like? You don't
> have an old default route listed before pppd's correct one that's
> sending it somewhere else? (that happened to me once, I forget why)
>
> You do have a direct route as well as a default route, I assume?
> Invalid query type deni.lovetts.wow.aust.com
>
> (ie: the first line as well as the second, in:
>
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
Iface
> 130.102.2.21 0.0.0.0 255.255.255.255 UH 0 0 0
ppp0
> 0.0.0.0 130.102.2.21 0.0.0.0 UG 0 0 49
ppp0
>
> )
>
> What's the deal with the 10.10.10.200 address it tries for first, do
> you know?
>
> Hmmm. What's your firewalling setup? You haven't set it up to deny all
> outside packets or anything nasty? (ipfwadm -Iln; ipfwadm -Oln;
> ipfwadm -Fln #to display the incoming, outgoing and forwarding
> firewall rules respectively, without doing name lookups)
>
> Cheers,
> aj
>
> - --
> Anthony Towns <aj at humbug.org.au> <http://student.uq.edu.au/~s343676/>
> I don't speak for anyone save myself. PGP encrypted mail preferred.
>
> ``NT, Networking, Security. Pick any two (you can't have all three).''
> -- _The Twelve Networking Truths_, RFC 1925, paraphrased
>
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> Comment: Key available at http://student.uq.edu.au/~s343676/aj_key.asc
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