Check the DNS config of the switch
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ACEP / ACMX #107 / ACDX #1281
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Original Message:
Sent: Nov 13, 2020 08:52 AM
From: James Whitehead
Subject: 6300m IP issue (10.05.0011)
TAC had a look and recommended rebooting the switch.
I ended up setting the VLAN 1 IP via ifconfig in the OS so that it matched the config. Going to upgrade firmware and reboot later today so hopefully that's the ned of that little gremlin.
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James Whitehead
Original Message:
Sent: Nov 13, 2020 07:58 AM
From: Sietze Reitsma
Subject: 6300m IP issue (10.05.0011)
You have several options:
-Connect the management interface (ip dhcp is turned on) and get ip and dns from connected router
-Add dns and a default route:
ip route 0.0.0.0/0 %gateway_ip%
ip dns server-address %dns ip%
Original Message:
Sent: Nov 13, 2020 07:23 AM
From: James Whitehead
Subject: 6300m IP issue (10.05.0011)
Hi,
One of our 6300m switches wasn't able to resolve DNS and therefore unable to connect to Central. I checked the central logs on the switch (show debug buffer module central reverse lines 10) and could see that the switch was unable to resolve the Central DNS name. What was strange was that the source IP of the DNS request was not the switch IP address!
I checked and double checked but couldn't see this source IP in the config anywhere.
Ran start-shell > ifconfig and can clearly see this IP assigned.
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Cheers
James
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