Clear IP Address On Ethernet Device

Hi Snowmizer,

Please use the command "net config eth0b 0" and let me know if that clears it out for you.

Best Regards,

Patrick

Hi Patrick,

That appeared to fix my issue. One question though. So I have eth0b and want to create VLAN 102 on it. When I select eth0b and create VLAN the creation process errors with a message that there's no IP configured on eth0b. Do I need to specify an IP address on eth0b before I can create a VLAN interface? Does it matter what network that IP address is on?

Thanks.

snowmizer,

Please see the following KB article for configuring VLAN interfaces:

181599 : VLAN Configuration            
https://support.emc.com/kb/181599

Best Regards,

Patrick

This worked. I was trying to add it through the GUI according to training docs but this worked much better. Now to the last question. Here's my network config:

My PC: 10.10.30.100 VLAN 100 GW: 10.10.10.250

Data Domain: eth0a - 10.10.10.200

                     eth0b.102 - 10.102.10.10 mask 255.255.255.0

                     default GW - 10.10.10.250

                     dynamic route - 10.102.10.0 GW - 0.0.0.0 Interface eth0b.102

I'm trying to ping from my PC to the 10.102.10.10 address on the Data Domain but it's not working. Any suggestions to fix this issue?

Thanks.

Kernel IP routing table

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

10.102.10.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0b.102

10.10.0.0       0.0.0.0         255.255.0.0     U     0      0        0 eth0a

127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo

0.0.0.0         10.10.10.250    0.0.0.0         UG    0      0        0 eth0a

can you post output from this command:

route show table

first thing, i know you created a VLAN tagged interface on DD, did the same VLAN id was set on the network switch this DD port is connected to ? ( i know it's basic, but i had to ask ) . If yes , do you have any devices on 10.102.10.0/24 network that you could use to ping 10.102.10.10 ( trying to eliminate routing issue from the picture).

I verified the port is configured for the correct VLAN. Seems like it's a missing route on Data Domain?

maybe

what is the gateway for 10.102.10.10 network ? from DD can you ping this gateway ?  If you can't ping the gateway then it's not routing.

net ping

Well it appears that I have an issue with the routing as I can't ping the default gateway from the DD. I know the switch configuration is fine because I have an Avamar grid on the same network that is working. Maybe I haven't added the correct routes to my eth0b.102 VLAN on DD. What are the steps to add the route? I followed some documentation I have from class but this doesn't appear to be working.

Thanks.

remember when two systems are on the same network, there are no routers in between them. If DD is 10.102.10.10 and your gateway for that network is 10.102.10.254 (for example), you would not need to set any static routes to be able to ping your gateway. If you can't ping any systems on 10.102.10.0 network then you have misconfiguration on DD/switch port.

Dynamox,

After I saw your email about the default route I removed the route I added and things are working so is it possible that the port needed to be a trunk port?

Thanks.

do route show config

It should show you something like

-net 10.102.0.0 netmask 255.0.0.0 gw 10.10.10.250

Note that I used netmask 255.0.0.0 as if you really believe that your gw is 10.10.10.250 then you wish to use that gw from 10.102.x.x network, you must adjust your netmark.  Usually network guys are owners of VLANs and they can give you right information what and where to use.  Once you have that, fixing it is not an issue with one or two commands.

Re-added my route (since I had deleted it yesterday until I made sure I had added it properly) and changed port to a trunk port. Now I'm able to ping the default gateway from DD and the DD from the switch. Now to configure at the DR site and then get the link between working.

I'll post updates after I get that step done as to whether my replication is working.

Thanks for all of the advice guys. I really appreciate it.

dynamox wrote: Hrvoje Crvelin wrote: do route show config It should show you something like -net 10.102.0.0 netmask 255.0.0.0 gw 10.10.10.250 you are not going to see that and you should not because 10.10.10.250 is his default gateway.

I see it in my case and it also happens to be default gw.  The only difference is that I deal with 5 different VLANs so display might be different (I do not use single gw, but multiple ones).