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TFGreen
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Can ping from Switch but not from PC

running into a current problem where my 10+ years of routing and switching experience is drawing a major blank (embarassed).

i have an HP procurve environment comprised of a core with a highly subnetted 192.168.x.x/24

I have a need to connect us up to a different network made up of a bunch or extreme switches on a 172.16.101.x/24 network for switch management on vlan 400.

I have been able to trunk vlan 400 from the hp to the extreme network.

From my core switch (or any switch that has vlan 400 on it) I can ping any switch address on the 172.16.101.x network so I know i have vlan 400 passed all the way through to the extreme network

From my pc I can not ping any of the 172.16.101.x switch addresses

What stupidly obvious thing here am I drawing a blank on.

Thanks in advance.
NetworkingPCSwitches / Hubs

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Mike

8/22/2022 - Mon
Alex

Windows firewall? Leave the service running but disable it on your lan card, just to rule it out
TFGreen

ASKER
thank you - windows firewall is disabled by default
TFGreen

ASKER
simple drawing of procurve switch connecivity to the extreme switch network.  All over vlan 400
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rwheeler23
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Gammelgaard

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TFGreen

ASKER
But if any HP switch on vlan 400 can ping any extreme switch on vlan 400 on the other network would that really be in play?
Gammelgaard

Well, the traceroute will tell you.. Do one from your pc and one from the Core router and compare
TFGreen

ASKER
trace route from core and pc attached - core is immedeate and pc never makes it

2017-03-07_8-53-22.png2017-03-07_8-53-41.png
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Gammelgaard

The routing device handling the return packet needs to know of your 192.168.x.x net
TFGreen

ASKER
so the extreme core would need a route in it to point back to the 192.168 network?
Gammelgaard

That's my best bet
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William Peck
Gammelgaard

That's my best bet
TFGreen

ASKER
you might be onto something - I could not ping the HP network from the extreme until I just added this route into the extreme network and not the extreme can ping the HP network - but still can't ping the extreme net from a pc yet

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Gammelgaard

Put a route for extreme net into your own core - also check the ACLs, if any
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TFGreen

ASKER
all fixed - thank you
Mike

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