06-09-2004 04:14 AM - edited 03-02-2019 04:15 PM
Hi. Has anyone managed to get ip helper address to forward DHCP broadcasts from one SVI VLAN interface to another on a 3750 switch?
06-09-2004 04:51 AM
Hello,
putting the ip helper address on one SVI pointing to an IP address off another SVI works, what exactly does your config look like, can you post it ?
Regards,
GP
06-09-2004
07:04 AM
- last edited on
02-27-2018
12:45 PM
by
Monica Lluis
Here is the config for the 3750 switch. We think we are doing everything by the book but no DHCP requests are getting out of VLAN 5 to the helper address in VLAN 1. Are there additional DHCP server/replay settings that must be on. Thanks for any help
06-09-2004 08:46 AM
Does anybody know what is the interaction between the DHCP relay service and the ip helper address command on a 3750 switch? Are they independent fo each other or does that DHCP services need to be set up for the ip helper address command to work?
06-09-2004 09:33 AM
Hello,
which physical interface is your DHCP server with IP address 134.226.32.57 connected to ? You have no trunk ports, only access ports, none of which is assigned to VLAN 1.
Regards,
Georg
06-09-2004 09:45 AM
Hi. The DHCP server 134.226.32.57 is attached through a switch on giga 1/0/1. I thought all unassigned switchports were defaulted to VLAN1. Anyway, I've added giga 1/0/1 to VLAN 1 but the assignment doesn't show up so I assume its the default. The 134.226.32 subnet is handled by the primary address of VLAN1
Gerry
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