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2 Posts
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528
November 1st, 2021 03:00
IP-Helper Adress not working for a single VLAN
Hi,
im running a pair of 4128F-ON as VLT.
I have configured some VLANs. With the command "ip-helper address" I pass on the DHCP server in these VLANs. Works quite well, except for my VLAN 9 (Phones).
The phones do not get a DHCP address, the DHCP broadcasts do not arrive at the DHCP server.
Client PCs in another VLAN get their addresses assigned, the ip-helper command works fine in other VLANS.
The DHCP server is reachable from the phone VLAN (and vice versa).
Does anyone have a hint or similar problems? Are there any limitations that I have missed?
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DELL-Erman O
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November 1st, 2021 08:00
Hello,
Could you try removing or deleting the lease addresses, in DHCP, I wonder if it's because of this.
Check if the DHCP server is on the correct gateway.
Hope this helps!
F.Bode
2 Posts
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November 9th, 2021 00:00
Hi,
The network connection from the DHCP server to the phones works without problems. Apparently only the DHCP broadcasts do not arrive.
DiegoLopez
6 Operator
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2.7K Posts
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November 9th, 2021 08:00
Hello @F.Bode,
What configuration steps did you follow? Did you followed any procedure?
Regards.