GRE tunnel problem om FreeBSD 5.2.1

[Martin Schweizer]

Hello Erik

I use pptpd with GRE without problems. First I had also troubles with the ipfw 
but now it works great. Do you use also ipfw?

Am Thu, Oct 21, 2004 at 04:09:39PM +0200 Erik Mossberg schrieb:
> Hello,
>    I have a weird problem with a GRE tunnel, the setup is as follows;
>    gre0: flags=b051<UP,POINTOPOINT,RUNNING,LINK0,LINK1,MULTICAST>
> mtu
>    1476
>            tunnel inet 213.67.20.137 --> 194.145.248.113
>            inet 194.145.248.138 --> 194.145.248.137 netmask 0xfffffffc
>    And I've tried both w/ and w/o the link1 option mentioned in the man
>    page for gre.
> 
> netstat -rn -f inet:
>    Destination        Gateway            Flags    Refs      Use  Netif
>    Expire
>    default            213.67.20.1        UGS        17 19250541    rl1
>    127.0.0.1          127.0.0.1          UH          1     1802    lo0
>    192.168.0          link#1             UC          0        0    rl0
>    192.168.0.54       00:04:75:c8:18:d8  UHLW        2  5683090    rl0
>    608
>    192.168.0.55       link#1             UHLW        2      140    rl0
>    192.168.0.91       00:0d:54:9a:d2:d1  UHLW        0    13538    rl0
>    1039
>    192.168.0.95       00:0d:88:81:fd:98  UHLW        0   766395
>    rl0      5
>    192.168.5.2        192.168.5.1        UH          0       12   gif2
>    194.145.248.137    194.145.248.138    UH          0     1177   gre0
>    213.67.20          link#2             UC          0        0    rl1
>    213.67.20.1        00:10:67:00:c4:39  UHLW        1        0    rl1
>    234
>    213.67.20.108      00:10:67:00:c4:39  UHLW        0       12    rl1
>    822
>    213.67.20.137      127.0.0.1          UGHS        0      136    lo0
> 
>    when I try to ping 194.195.248.137 I have a 95% packet loss, but when
>    pinging from remote to 194.145.248.138 works just fine with no packet
>    loss.
> 
>    tcpdump -eni rl1 shows this:
>    22:05:55.148354 0:10:a7:13:bf:58 0:10:67:0:c4:39 0800 122:
>    213.67.20.137 > 194.145.248.113: gre (frag 49403:88 at 752+)
>    22:05:56.158351 0:10:a7:13:bf:58 0:10:67:0:c4:39 0800 122:
>    213.67.20.137 > 194.145.248.113: gre (frag 49410:88 at 51176)
> 
>    Sometimes the packet 1 or 2 packets goes through and gets a reply
>    though.
> 
>    I use:
>    FreeBSD 5.2.1-RELEASE-p5 #3: Sun Apr 18 22:25:17 CEST 2004
>    omicron at fisken:/usr/obj/usr/src/sys/merltock  i386
> 
>    When google-ing for this problem I found this:
>    http://lists.freebsd.org/pipermail/freebsd-current/2004-February/02039
>    4.html
> 
>    Which seems to be the same problem, can the bug have been brought back
>    afterwards?
>    I hope I didn't miss any info..
> 
> I will try upgrading to 5.3-RC1, seems to have been alot of fixes
> since then, but I'd be glad for any information what might be the
> cause of this problem.
> 
> Thanks.
> 
>    Regards,
>    Erik
> _______________________________________________
> freebsd-questions at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"

-- 

Regards

Martin Schweizer
<info at pc-service.ch>

PC-Service M. Schweizer GmbH; Gewerbehaus Schwarz; CH-8608 Bubikon
Tel. +41 55 243 30 00; Fax: +41 55 243 33 22; http://www.pc-service.ch;
public key : http://www.pc-service.ch/pgp/public_key.asc; 
fingerprint: EC21 CA4D 5C78 BC2D 73B7  10F9 C1AE 1691 D30F D239;

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-questions/attachments/20041024/147c503d/attachment.bin