topic Re: Inter vlan without configuration in ExtremeSwitching (EOS)

Inter vlan without configuration

Visconti — Fri, 12 Apr 2019 20:07:19 GMT

Hi,
We have a problem with our network..
the routing switch serie B5 enterasys is configured as below:
**************************************************************************
#vlan

set vlan create 30

set vlan create 31

set vlan create 40

set vlan create 50

set vlan name 30 "VL-AUTOMAZIONE-PLC-AQ"

set vlan name 31 "VL-AUTOMAZIONE-MGT"

set vlan name 40 "VL-AUTOMAZIONE-PC-AQ"

set vlan name 50 "VL-BADGE-AQ"

clear vlan egress 1 ge.1.1-44

set vlan egress 30 ge.1.45-48 tagged

set vlan egress 30 ge.1.1-22 untagged

set vlan egress 31 ge.1.45-48 tagged

set vlan egress 40 ge.1.45-48 tagged

set vlan egress 40 ge.1.23-44 untagged

set vlan egress 50 ge.1.45-48 tagged

set host vlan 31

#Router Configuration

router

enable

configure

interface vlan 30

ip address 192.168.0.254 255.255.255.0

no shutdown

exit

interface vlan 31

ip address 192.168.10.254 255.255.255.0

no shutdown

exit

interface vlan 40

ip address 192.168.2.254 255.255.255.0

ip address 192.168.4.254 255.255.255.0 secondary

ip address 192.168.6.254 255.255.255.0 secondary

no shutdown
**********************************************************
But from my pc IP 10.130 vlan 31 I can ping one of pc IP 4.0 vlan 40

Can any one say me the reason ???

Re: Inter vlan without configuration

Ronald_Dvorak — Fri, 12 Apr 2019 20:39:00 GMT

Hi,

as per CLI reference guide routing is enabled by default

-Ron

Re: Inter vlan without configuration

Visconti — Fri, 12 Apr 2019 20:48:52 GMT

So will you tell me that to segregate the vlan is not enough to set the switch routing configuration as above?????
I must to set also the "no ip routing" ??????
Would this explain the ping between the various PCs of various VLANs?

Re: Inter vlan without configuration

Tomasz — Wed, 17 Apr 2019 00:05:47 GMT

Hi Visconti,

Indeed: when routing is enabled, VLANs with IP addresses (routable interfaces, SVIs in 'C' terminology) are routed.

Kind regards,
Tomasz

Re: Inter vlan without configuration

apurgert — Sat, 05 Dec 2020 06:52:25 GMT

Sorry to resurrect an old thread, but I had the same issue as Visconti. Using no ip routing worked, however, I am no longer able to access my switch via Telnet, SSH, or the web.

Is there something I can do to bring it back so I can manage as needed without having it route?

Re: Inter vlan without configuration

Brian_Anderson1 — Sat, 05 Dec 2020 07:04:43 GMT

Have you tried putting the computer you are trying to ssh into switch into the same vlan as the switch? Last resort would be to console into the switch.

Re: Inter vlan without configuration

apurgert — Sat, 05 Dec 2020 07:07:50 GMT

Hey Brian,

Yes, I am on the same VLAN as the switch already. I haven’t rebooted it or anything, I did the no ip routing my session stopped.

Worst case I will console in as needed.

Thanks!

Re: Inter vlan without configuration

apurgert — Wed, 09 Dec 2020 07:46:05 GMT

Just in case anyone comes across this, I found that my IP was only set on my interface. I removed it from the router portion and then set it as the main IP of the switch.