03-19-2013 08:09 AM - edited 03-07-2019 12:20 PM
Guys and gals, I know this question has probably been posted a hundred times, but I have scoured and cannot manage to find a solution that fixes my issue. I am running a windows DHCP server (ip x.x.1.1) that needs to talk to a pxe server (ip x.x.1.78), both servers are in vlan 6. The systems I am building are on vlan 9 and have an address of x.x.9.x. The suspected result happens, if I move the build systems to the server vlan all works well but in their respective vlan (of 9) the dhcp request times out. I do have access-lists setup and I have the dhcp-server option set to x.x.1.1. See below for some of the pertinant information you might be able to use:
vlan 9 configuration:
interface Vlan9
ip address 192.168.9.1 255.255.255.0
ip access-group 109 in
ip helper-address 192.168.1.1 (DHCP SERVER)
ip helper-address 192.168.1.78 (PXE SERVER)
end
vlan 9 access list:
Extended IP access list 109
10 permit ip 192.168.9.0 0.0.0.255 192.168.1.0 0.0.0.255 (1 match)
20 permit udp any 192.168.1.0 0.0.0.255 eq bootps
30 permit udp any host 255.255.255.255 eq bootps (14 matches)
40 permit ip 192.168.9.0 0.0.0.255 192.168.50.0 0.0.0.255
50 permit ip 192.168.9.0 0.0.0.255 192.168.15.0 0.0.0.255
The access list is just to keep traffic from 9 from getting to any other systems except servers.
Hopefully this will help and it is something easy I am overlooking. As always your help is greatly appreciated.
Solved! Go to Solution.
03-19-2013 08:26 AM
Hi Rory,
try to add line "permit udp any 192.168.1.0 0.0.0.255 eq bootpc to access-list 109
Regards
03-19-2013 08:20 AM
Not sure if this is helpful or not but also here is the list of options configured on the DHCP server.
03-19-2013 08:26 AM
Hi Rory,
try to add line "permit udp any 192.168.1.0 0.0.0.255 eq bootpc to access-list 109
Regards
03-19-2013 09:04 AM
That was it, thanks for that simple solution. Feel a little foolish for not catching that one, haha.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide