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01-11-2006 08:28 PM
01-11-2006 08:28 PM
Here's an issue I encounter with IP addressing :
I have two AlphaServer 1200 running VMS8.2 as a cluster with TCPIP V5.5 installed.
Each of these has two ethernet interfaces, ewa0 and ewa1.
The first interface is connected to a VLAN and the second to another one, VLANs cannot reach each other.
I defined an IP address for the first interface of each servers ; 10.2.1.158 for one and 10.2.1.159 for the other. Netmasks are 255.255.255.0 everywhere.
The gateway has been defined to be 10.2.1.230. BIND server is 10.2.1.150. Both of these addresses respond to ping requests from my servers.
Everything seems to work allright.
Problems occurs when I set an IP address to the second interface of each servers, so they can be reached from the other VLAN.
As I set 10.2.1.160 on one and 10.2.1.161 on the other, ping requests on my servers fail half the time. Ping requested from my servers on other computers fail the same way.
I think of a routing issue, but cannot find the point.
Thanks by advance for your help,
O.Jadot
Solved! Go to Solution.
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01-11-2006 08:53 PM
01-11-2006 08:53 PM
SolutionOtherwise IP will think that you only have 1 network and use any of the 2 cards for reaching it.
Wim
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01-11-2006 09:07 PM
01-11-2006 09:07 PM
Re: PING issue while enabling multiple IP interfaces
Purely Personal Opinion
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01-12-2006 01:33 AM
01-12-2006 01:33 AM
Re: PING issue while enabling multiple IP interfaces
HTH,
Thanks & regards,
Lokesh
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01-12-2006 05:54 AM
01-12-2006 05:54 AM
Re: PING issue while enabling multiple IP interfaces
Sorry, my expertise in things IP is inferior to many other in this forum, but
WELCOME to the VMS forum!
Proost.
Have one on me.
jpe
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01-13-2006 02:39 AM
01-13-2006 02:39 AM
Re: PING issue while enabling multiple IP interfaces
regards,
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01-15-2006 07:09 PM
01-15-2006 07:09 PM
Re: PING issue while enabling multiple IP interfaces
I have tested Wim van den Wyngaert's proposition, which was the good one. I now have a fully functional IP solution.
Thanks to you all for your help, and to Jan van den Ende for the welcome.
O.JADOT