[opensuse] Weird network issue
I have a 12.1 system which has one network interface wlan0 with an ipaddr of 192.168.1.8 and a default route of 192.168.1.1. For some unknown reason, when I try to connect to at least one particular ipaddr, the os tries to arp 172.16.1.2. I have no idea where it's getting this addr. It doesn't matter how many times I bring up & down the interface, the os persists in looking up this invalid host and thus any attempt to connect fails with host unreachable. Any ideas how I can get rid of this invalid addr and where it's coming from? The only thing that works clearing it is rebooting, which is very annoying. Rich-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday, 2011-11-03 at 08:40 -0500, Rich Coe wrote:
I have a 12.1 system which has one network interface wlan0 with an ipaddr of 192.168.1.8 and a default route of 192.168.1.1.
12.1? You should be asking on the factory mail list.
For some unknown reason, when I try to connect to at least one particular ipaddr, the os tries to arp 172.16.1.2. I have no idea where it's getting this addr.
That's a local subnet. http://en.wikipedia.org/wiki/Reserved_IP_addresses - -- Cheers, Carlos E. R. (from 11.4 x86_64 "Celadon" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) iEYEARECAAYFAk6zPvoACgkQtTMYHG2NR9XBngCfWehy6s7/6EUsFsVUdVKNkx4E O9kAn3zzojTnpJm0yKL7/qWwX18f6SDP =YfwJ -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Fri, 4 Nov 2011 02:25:14 +0100 (CET) "Carlos E. R." <robin.listas@telefonica.net> wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
On Thursday, 2011-11-03 at 08:40 -0500, Rich Coe wrote:
I have a 12.1 system which has one network interface wlan0 with an ipaddr of 192.168.1.8 and a default route of 192.168.1.1.
12.1? You should be asking on the factory mail list.
For some unknown reason, when I try to connect to at least one particular ipaddr, the os tries to arp 172.16.1.2. I have no idea where it's getting this addr.
That's a local subnet.
http://en.wikipedia.org/wiki/Reserved_IP_addresses
- -- Cheers, Carlos E. R. (from 11.4 x86_64 "Celadon" at Telcontar)
I'll look into the factory list, thanks. I found the issue. For whatever reason why it doesn't happen on 11.4, an incoming ICMP Redirect message is coming from the gateway to direct all traffic to a new gateway. Rich -- Rich Coe rcoe@wi.rr.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Rich Coe wrote:
I found the issue. For whatever reason why it doesn't happen on 11.4, an incoming ICMP Redirect message is coming from the gateway to direct all traffic to a new gateway.
That definitely also happened on much older releases - it's a standard network feature. It may be disabled, but probably shouldn't be. -- Per Jessen, Zürich (11.9°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Fri, 04 Nov 2011 10:04:27 +0100 Per Jessen <per@opensuse.org> wrote:
Rich Coe wrote:
I found the issue. For whatever reason why it doesn't happen on 11.4, an incoming ICMP Redirect message is coming from the gateway to direct all traffic to a new gateway. That definitely also happened on much older releases - it's a standard network feature. It may be disabled, but probably shouldn't be. Per Jessen, Zürich (11.9°C)
I only disabled it because the 'route' isn't getting flushed from the network stack when the network entry is removed. The redirect poisoned the network stack since I can't connect to the remote host unless I'm on the network where the redirect originated. R. -- Rich Coe rcoe@wi.rr.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 11/04/2011 12:05 PM, Rich Coe pecked at the keyboard and wrote:
On Fri, 04 Nov 2011 10:04:27 +0100 Per Jessen<per@opensuse.org> wrote:
Rich Coe wrote:
I found the issue. For whatever reason why it doesn't happen on 11.4, an incoming ICMP Redirect message is coming from the gateway to direct all traffic to a new gateway. That definitely also happened on much older releases - it's a standard network feature. It may be disabled, but probably shouldn't be. Per Jessen, Zürich (11.9°C)
I only disabled it because the 'route' isn't getting flushed from the network stack when the network entry is removed.
The redirect poisoned the network stack since I can't connect to the remote host unless I'm on the network where the redirect originated.
R.
/usr/sbin/routef might be of some help. -- Ken Schneider SuSe since Version 5.2, June 1998 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Fri, 04 Nov 2011 13:17:39 -0400 Ken Schneider - openSUSE <suse-list3@bout-tyme.net> wrote:
On 11/04/2011 12:05 PM, Rich Coe pecked at the keyboard and wrote:
On Fri, 04 Nov 2011 10:04:27 +0100 Per Jessen<per@opensuse.org> wrote:
Rich Coe wrote:
I found the issue. For whatever reason why it doesn't happen on 11.4, an incoming ICMP Redirect message is coming from the gateway to direct all traffic to a new gateway.
I only disabled it because the 'route' isn't getting flushed from the network stack when the network entry is removed.
The redirect poisoned the network stack since I can't connect to the remote host unless I'm on the network where the redirect originated.
R.
/usr/sbin/routef might be of some help. Ken Schneider
That didn't work. And my work-around of setting net.ipv4.conf.all.accept_redirects = 0 doesn't work either. R. -- Rich Coe rcoe@wi.rr.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (4)
-
Carlos E. R. -
Ken Schneider - openSUSE -
Per Jessen -
Rich Coe