>>> Lars Ellenberg <lars.ellenberg@linbit.com> schrieb am 04.09.2014 um 15:28
in
Nachricht <20140904132826.GH23497@soda.linbit>:
> On Thu, Sep 04, 2014 at 02:32:14PM +0200, Ulrich Windl wrote:
>> Hi!
>>
>> I'm using ocf:pacemaker:ping to ping some specific address. The requirement
> is that a specific source address (that is on a local interface) is being
> used to ping a destination. So if the resource moves between nodes, the same
> source address shall be used.
>>
>> The address to use is a secondary adress on interface bond0, like
bond0:xyz.
> I can spacify "-I bond0" and "-I bond0:xyz", but the latter seems to be
> ignores, as if I just said "-I bond0". Ping is from
iputils-ss021109-292.28.1
> (SLES11 SP3).
>>
>> I had this requirement for HP-UX years ago, and the solution was to install
a
> special local ping that allowed to select the source address.
>
>> So my preferences are:
>> 1) Get it done with the software I have
>
> ping -w 2 -c 3 -I 127.0.0.1 8.8.8.8
> ping: sendmsg: Invalid argument
> ping: sendmsg: Invalid argument
> PING 8.8.8.8 (8.8.8.8) from 127.0.0.1 : 56(84) bytes of data.
>
> --- 8.8.8.8 ping statistics ---
> 2 packets transmitted, 0 received, 100% packet loss, time 1008ms
>
> ping -w 2 -c 3 -I 10.11.12.13 8.8.8.8
> bind: Cannot assign requested address
>
> ping -w 2 -c 3 -I 10.43.9.55 8.8.8.8
> PING 8.8.8.8 (8.8.8.8) from 10.43.9.55 : 56(84) bytes of data.
> 64 bytes from 8.8.8.8: icmp_seq=1 ttl=41 time=27.4 ms
> 64 bytes from 8.8.8.8: icmp_seq=2 ttl=41 time=27.4 ms
>
> --- 8.8.8.8 ping statistics ---
> 2 packets transmitted, 2 received, 0% packet loss, time 1000ms
> rtt min/avg/max/mdev = 27.405/27.430/27.456/0.167 ms
>
> Does that help?
Hi!
Yes, it helps: The problems with ping are:
1) There is no error if you use an interface alias with -I (like bond0:xyz)
2) You can use an IP address as "interface" for -I
3), but you cannot use a hostname (resolving to the same IP address as in 2)):
"ping: unknown iface <hostname>"
Regards,
Ulrich
>
> --
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
>
> DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
> _______________________________________________
> Linux-HA mailing list
> Linux-HA@lists.linux-ha.org
> http://lists.linux-ha.org/mailman/listinfo/linux-ha
> See also: http://linux-ha.org/ReportingProblems
_______________________________________________
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Linux-HA@lists.linux-ha.org
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems
in
Nachricht <20140904132826.GH23497@soda.linbit>:
> On Thu, Sep 04, 2014 at 02:32:14PM +0200, Ulrich Windl wrote:
>> Hi!
>>
>> I'm using ocf:pacemaker:ping to ping some specific address. The requirement
> is that a specific source address (that is on a local interface) is being
> used to ping a destination. So if the resource moves between nodes, the same
> source address shall be used.
>>
>> The address to use is a secondary adress on interface bond0, like
bond0:xyz.
> I can spacify "-I bond0" and "-I bond0:xyz", but the latter seems to be
> ignores, as if I just said "-I bond0". Ping is from
iputils-ss021109-292.28.1
> (SLES11 SP3).
>>
>> I had this requirement for HP-UX years ago, and the solution was to install
a
> special local ping that allowed to select the source address.
>
>> So my preferences are:
>> 1) Get it done with the software I have
>
> ping -w 2 -c 3 -I 127.0.0.1 8.8.8.8
> ping: sendmsg: Invalid argument
> ping: sendmsg: Invalid argument
> PING 8.8.8.8 (8.8.8.8) from 127.0.0.1 : 56(84) bytes of data.
>
> --- 8.8.8.8 ping statistics ---
> 2 packets transmitted, 0 received, 100% packet loss, time 1008ms
>
> ping -w 2 -c 3 -I 10.11.12.13 8.8.8.8
> bind: Cannot assign requested address
>
> ping -w 2 -c 3 -I 10.43.9.55 8.8.8.8
> PING 8.8.8.8 (8.8.8.8) from 10.43.9.55 : 56(84) bytes of data.
> 64 bytes from 8.8.8.8: icmp_seq=1 ttl=41 time=27.4 ms
> 64 bytes from 8.8.8.8: icmp_seq=2 ttl=41 time=27.4 ms
>
> --- 8.8.8.8 ping statistics ---
> 2 packets transmitted, 2 received, 0% packet loss, time 1000ms
> rtt min/avg/max/mdev = 27.405/27.430/27.456/0.167 ms
>
> Does that help?
Hi!
Yes, it helps: The problems with ping are:
1) There is no error if you use an interface alias with -I (like bond0:xyz)
2) You can use an IP address as "interface" for -I
3), but you cannot use a hostname (resolving to the same IP address as in 2)):
"ping: unknown iface <hostname>"
Regards,
Ulrich
>
> --
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
>
> DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
> _______________________________________________
> Linux-HA mailing list
> Linux-HA@lists.linux-ha.org
> http://lists.linux-ha.org/mailman/listinfo/linux-ha
> See also: http://linux-ha.org/ReportingProblems
_______________________________________________
Linux-HA mailing list
Linux-HA@lists.linux-ha.org
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems