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Re: DHCP issue after stack replacement

by michaelpatton in Switching
‎01-15-2019 11:38 AM
‎01-15-2019 11:38 AM
Looks like you hit the nail on the head, @PhilipDAth. The DHCP server reports 257 IP addresses assigned in our .0/24 range. Looks like some of our VoIP phones got assigned to the wrong VLAN during the switch over, which used up the rest of the IP range.  ... View more

Re: DHCP issue after stack replacement

by michaelpatton in Switching
‎01-15-2019 10:43 AM
‎01-15-2019 10:43 AM
Issues are only with the Layer 3 switch providing DHCP, and I believe only on VLAN 1 (I don't remember any on VLAN 200). ... View more

Re: DHCP issue after stack replacement

by michaelpatton in Switching
‎01-15-2019 10:18 AM
‎01-15-2019 10:18 AM
There are two devices acting as DHCP servers on the network. An MS250-48FP Layer 3 switch acting as DHCP server for VLANs 1 and 200, and an MX84 acting as DHCP server for VLANs 500 and 50. ... View more

DHCP issue after stack replacement

by michaelpatton in Switching
‎01-15-2019 06:30 AM
‎01-15-2019 06:30 AM
I recently completed a switch replacement under the MS225 replacement action. Six switches broken in to two stacks of 3 each. Since the replacement, about a half dozen endpoints will not get a good IP address via DHCP. I've confirmed that the ports they are on are assigned to the correct VLAN, and they will connect if manually assigned an IP address. Clients are a mix of Windows 7 and Windows 10. I have tried all of the Windows troubleshooting tricks that I know of (netsh int ip reset, netsh winsock reset, ipconfig /release and /renew) and they still won't get anything from DHCP except for an APIPA IP address. If anyone has any thoughts or suggestions on what could be causing this, I'd love any help anyone can provide.   Thank you! ... View more

Re: MS225 Stack Replacement

by michaelpatton in Switching
‎01-04-2019 12:37 PM
‎01-04-2019 12:37 PM
Sorry for the thread hijack. Is there anything bad that would happen if I cloned the switches during production time? I have two stacks of three switches each, and if I can save myself some maintenance time by cloning ahead of time, that'd be great. I don't want to clone early and bring down the network during a non-maintenance window, though. Thanks! ... View more
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