Changed ISP now can't get to websites / traceroute

Edmund Craske edmund at m00is.net
Mon Jul 7 20:05:08 BST 2003


I use Zen and www.freebsdforums.org works absolutely fine.
As for the traceroutes, I believe Windows and FreeBSD use different
kinds of echo requests, though I could be talking out of my arse on that
one :}
Sounds like a router problem, have you changed it along with the ISP?

Ed

PS: try doing the same/similar tests on the router machine (assuming
it's a PC and not hardware) and/or configuring a machine with a static
public IP and trying it on that.

-----Original Message-----
From: freebsd-users-admin at uk.freebsd.org
[mailto:freebsd-users-admin at uk.freebsd.org] On Behalf Of Stacey Roberts
Sent: 07 July 2003 19:53
To: freebsduk; FreeBSD Questions
Subject: Changed ISP now can't get to websites / traceroute


Hello,
     Sorry for brining this to the list, but I've been grappling on my
own with this for the last two weeks now.

I had an ADSL connection at one point, but have moved home. With this, I
had to change ISP's in order to get ADSL where I now live. The thing is,
now that I've got this new ISP (Zen - 8 static IP's), I find that there
are sites that I am not able to get (browse) to, most concerning is
www.freebsdforums.org. Ever since I've got this new ADSL account, not
for hell nor high-water can I hit that site, using any browser, using
any OS (FreeBSD, RH =A3inux or MS Win2K Pro / XP) at home.

In addition to this, I am also unable to run traceroute from any FreeBSD
machine to *any* external site via IP address, nor WWW address, even
though I can from the MS Win machines.

With my previous ADSL provider (PIPEX) traceroute worked fine from *all*
machines, regardless of OS, hence my feeling it can't be anything to do
with ipfw running on my *nix boxes.., but then again..,

So here are my questions:

1] Does any here use Zen ADSL successfully and is able to connect to
www.freeBSDforums.org?

2] Does anyone know of any reason why traceroute might fail on FreeBSD,
but work on Win2K Pro?

Some info..,

I can ping www.freebsd.org:
$ ping www.freebsd.org
PING www.freebsd.org (216.136.204.117): 56 data bytes
64 bytes from 216.136.204.117: icmp_seq=3D0 ttl=3D45 time=3D191.092 ms =
64
bytes from 216.136.204.117: icmp_seq=3D1 ttl=3D45 time=3D173.511 ms 64 =
bytes
from 216.136.204.117: icmp_seq=3D2 ttl=3D45 time=3D193.024 ms 64 bytes =
from
216.136.204.117: icmp_seq=3D3 ttl=3D45 time=3D181.710 ms ^C
--- www.freebsd.org ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss round-trip
min/avg/max/stddev =3D 173.511/184.834/193.024/7.814 ms $

But traceroute fails:
$ traceroute www.freebsd.org
traceroute to www.freebsd.org (216.136.204.117), 64 hops max, 44 byte
packets  1  192.168.1.1 (192.168.1.1)  1.448 ms  0.431 ms  0.304 ms  2
* * *  3  * * *  4  * * *  5  * * *  6  * * *  7  * * *  8  * * *  9  *
* * 10  * * * 11  * * * 12  * * * 13  * * * 14  * * * 15  * * * 16  * *
* 17  * * * 18  * * * 19  * * * 20  * * * 21  * * * 22  * * * 23  * * *
24  * * * 25  * * * 26  * * * 27  * * * 28  * * * 29  * * * 30  * * * 31
* * * 32  * * * 33  * * * ^C $

On Win2K Pro on the other hand.., all success:

First ping test:
C:\>ping www.freebsd.org
=20
Pinging www.freebsd.org [216.136.204.117] with 32 bytes of data:
=20
Reply from 216.136.204.117: bytes=3D32 time=3D172ms TTL=3D45
Reply from 216.136.204.117: bytes=3D32 time=3D172ms TTL=3D45
Reply from 216.136.204.117: bytes=3D32 time=3D172ms TTL=3D45
Reply from 216.136.204.117: bytes=3D32 time=3D156ms TTL=3D45
=20
Ping statistics for 216.136.204.117:
    Packets: Sent =3D 4, Received =3D 4, Lost =3D 0 (0% loss), =
Approximate
round trip times in milli-seconds:
    Minimum =3D 156ms, Maximum =3D  172ms, Average =3D  168ms
=20
C:\>

Now traceroute, well.., tracert:
C:\>tracert www.freebsd.org
=20
Tracing route to www.freebsd.org [216.136.204.117]
over a maximum of 30 hops:
=20
  1   <10 ms   <10 ms   <10 ms  192.168.1.1
  2    31 ms    31 ms    16 ms  galileo-dsl1.hq.zen.net.uk [62.3.82.2]
  3    16 ms    15 ms    31 ms  leucippus-ve-21.hq.zen.net.uk
[62.3.80.118]
  4    16 ms    16 ms    15 ms  bolzano-ge-0-0.wh.zen.net.uk
[62.3.80.86]
  5    16 ms    16 ms    31 ms  195.16.169.89
  6    31 ms    16 ms    31 ms  pos8-1.core1.London1.Level3.net
[212.187.131.114
]
  7    31 ms    31 ms    31 ms  ae0-11.mp1.London1.Level3.net
[212.187.131.1]
  8    32 ms    31 ms    31 ms  so-1-0-0.mp1.London2.Level3.net
[212.187.128.49]
=20
  9   125 ms   125 ms    94 ms  so-1-0-0.bbr1.Washington1.level3.net
[212.187.12
8.138]
 10   172 ms   172 ms   172 ms  so-2-0-0.mp2.SanJose1.Level3.net
[64.159.0.218]
=20
 11   188 ms   171 ms   188 ms  gige10-1.ipcolo3.SanJose1.Level3.net
[64.159.2.1
05]
 12   172 ms     *        *     cust-int.level3.net [64.152.81.62]
 13     *      172 ms   156 ms  ge-1-2-0.msr2.sc5.yahoo.com
[216.115.101.230]
 14   172 ms   172 ms   172 ms  vl47.bas1-m.sc5.yahoo.com
[66.163.160.230]
 15   172 ms   187 ms   172 ms  www.freebsd.org [216.136.204.117]
=20
Trace complete.
C:\>

Needless to say there are no corresponding entries in /var/log/messages,
nor /var/log/security.

Please let me know if you'd want to see my ipfw rules, run any further
tests, etc. I didn't want this to go for too long, but I'll be willing
to provide any info you might need in order to assist.

Thanks for the time.

Regards,

Stacey
--=20
Stacey Roberts
B.Sc (HONS) Computer Science

Web: www.vickiandstacey.com



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