Hi,
I have following scenario.
3 VLANs on cisco 3550 switch.
VLAN A has win-2003 server as DHCP-server.
VLAN B has ip-helper configured as win-
server-
ip.
VLAN C has ip-helper configured as win-
server-
ip.
Win2003-dhcp-server has a superscope with
three
sub-scopes for above three VLANs.
POOL-A for VLAN-A
POOL-B for VLAN-B
POOL-C for VLAN-C
they have enough ip addressses for clients.
Clients on VLAN A succesfully get ip address
from POOL-A.
However none on the clients on VLAN-B or
VLAN-C
are able to get an IP address.
Packet sniffer shows that request is being
forwarded by cisco-switch to windows-dhcp-
server, still dhcp server is not replying to
the
DHCP-discover messages.
I have also noticed that the DHCP-DISCOVER
message has “relay agent ip” as “0.0.0.0”
Is this the problem?
If yes then how can i change it on cisco-
3550. I
have tried playing with similar options on
cisco
viz.
ip dhcp relay information check
ip dhcp relay information option
ip dhcp relay information policy
ip dhcp relay information trust-all
ip dhcp relay forward spanning-tree
but did not get any success..
Any suggestions?
Thanks in advance.