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тАО12-09-2008 12:49 PM
тАО12-09-2008 12:49 PM
I have a switch as DHCP relay agent. The switch has two VLANs, the DHCP server is set with two scopes. My problem is that the second VLAN is not receiving an ip address of its scope. Does anyone know what I am missing?
Thanks!
the configuration is listed below:
hostname "ProCurve Switch 3500yl-24G"
module 1 type J86xxA
ip routing
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged 1-12
ip address a.b.c.d 255.255.255.0
no untagged 13-24
exit
vlan 2
name "VLAN2"
untagged 13-24
ip helper-address a.b.c.e
ip address w.x.y.z 255.255.255.0
exit
Solved! Go to Solution.
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тАО12-09-2008 01:57 PM
тАО12-09-2008 01:57 PM
Solutionquestions:
1) what port is the dhcp srvr connected to?
2) can you statically assign an ip addr to a computer in vlan 2 and then ping the dhcp srvr?
3) what is the dhcp srvr's def g/w addr?
hth...jeff
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тАО12-09-2008 02:16 PM
тАО12-09-2008 02:16 PM
Re: DHCP-relay
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тАО12-11-2008 12:18 AM
тАО12-11-2008 12:18 AM
Re: DHCP-relay
a dhcp request comming from vlan2 is forwarded to a.b.c.e as comming from w.x.y.z.
The dhcp-server should send a dhcp-offer from the scope w.x.y.a send it back to w.x.y.z wich must forward it within vlan2.
You configured the dhcp-server with two scopes. Did you use a superscope? (you should not have).
Do you have multiple DHCP-servers?
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тАО12-11-2008 08:48 AM
тАО12-11-2008 08:48 AM
Re: DHCP-relay
The second VLAN never receives the offer, in fact, the DHCP server is unreachable to the VLAN 2.
I don't know what is happening.
Regards,
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тАО12-11-2008 09:04 AM
тАО12-11-2008 09:04 AM
Re: DHCP-relay
the dhcp server should be able to ping the vlan ip addr of the switch...
hth...jeff
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тАО12-11-2008 09:14 AM
тАО12-11-2008 09:14 AM
Re: DHCP-relay
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тАО01-22-2009 05:32 AM
тАО01-22-2009 05:32 AM
Re: DHCP-relay
April, did your problem got solved?
What software did you use on your 3500?
There was some bugs that corrupted dhcp relay packets in releases like 13.27 and similar. This was fixed in the newer 13.4* operating system images.
Check the release notes:
http://cdn.procurve.com/training/Manuals/yl-zl-RelNotes-K1349-59914720.pdf