Network noob here.
I'm trying to get my DHCP server to issue leases across 2 switches using VLAN 1.
With GNS3, I have 1 VirtualBox guest running isc-dhcp and 2 Cisco switches running IOS 12.4 in a configuration like so:
[dhcp_server]-(eth1) <--> (fa1/0)[switch_1](fa1/1) <--> (fa1/0)[switch_2]
VLAN 1 is the only VLAN I've configured on both switches:
switch_1# conf t switch_1# int vlan 1 switch_1# ip address dhcp switch_1# no shut
and the same on switch_2:
switch_2# conf t switch_2# int vlan 1 switch_2# ip address dhcp switch_2# no shut
This successfully configures switch_1 with an ip address from the DHCP server, but switch_2 is unable to get an ip address.
I've tried connecting another guest VM to switch_1, and it's also unable to get an ip address from the DHCP server.