DHCP Server not working (as intended)

dboillot · June 22, 2010, 1:50pm

I have an RB-493AH board w/ DHCP setup on it with static addresses setup using a script like this.

/ip dhcp-server lease add address=192.168.135.1 mac-address=00:15:6D:FA:5E:5D client-id="Name1" server=dhcp1 disabled=no
/ip dhcp-server lease add address=192.168.135.2 mac-address=00:15:6D:E4:A6:A0 client-id="Name2" server=dhcp1 disabled=no
/ip dhcp-server lease add address=192.168.135.3 mac-address=00:15:6D:E6:A8:E0 client-id="Name3" server=dhcp1 disabled=no
/ip dhcp-server lease add address=192.168.135.4 mac-address=00:15:6D:FC:60:FB client-id="Name4" server=dhcp1 disabled=no
/ip dhcp-server lease add address=192.168.135.5 mac-address=00:15:6D:F0:59:FA client-id="Name5" server=dhcp1 disabled=no

but the clients are not getting IP addresses like they’re supposed to. In fact, no one has pulled the proper IP address from the device.

fewi · June 22, 2010, 1:58pm

Can you post your IP pool and DHCP server and server network configuration, too?

dboillot · June 22, 2010, 2:01pm

refresh my memory as to how to do just those..

DHCP-SERVER

# jan/02/1970 18:54:55 by RouterOS 4.10
# software id = 
#
/ip dhcp-server
add address-pool=dhcp_pool1 authoritative=after-2sec-delay bootp-support=\
    static disabled=no interface=ether1 lease-time=3d name=dhcp1
/ip dhcp-server config
set store-leases-disk=5m
/ip dhcp-server lease
add address=192.168.135.1 client-id="Name1" comment="" disabled=no \
    mac-address=00:15:6D:FA:5E:5D server=dhcp1
add address=192.168.135.2 client-id="Name2" comment="" disabled=no \
    mac-address=00:15:6D:E4:A6:A0 server=dhcp1
add address=192.168.135.3 client-id=NULL comment="" disabled=yes mac-address=\
    11:11:11:11:11:01 server=dhcp1
add address=192.168.135.4 client-id="Name3" comment="" disabled=no \
    mac-address=00:15:6D:FC:60:FB server=dhcp1
add address=192.168.135.5 client-id="Name4" comment="" disabled=no \
    mac-address=00:15:6D:F0:59:FA server=dhcp1
add address=192.168.135.6 client-id=Name5="" disabled=no mac-address=\
    00:15:6D:FC:61:7B server=dhcp1
add address=192.168.135.7 client-id=Null comment="" disabled=no mac-address=\
    00:15:6D:FC:61:7A server=dhcp1
add address=192.168.135.8 client-id="Name6" comment="" disabled=no \
    mac-address=00:15:6D:FC:61:6F server=dhcp1
add address=192.168.135.9 client-id="Name7" comment="" disabled=no \
    mac-address=00:15:6D:FC:60:7E server=dhcp1
add address=192.168.135.10 client-id="Name8" comment="" disabled=no \
    mac-address=00:15:6D:FC:60:0F server=dhcp1
add address=192.168.135.12 client-id="Name9" comment="" disabled=no \
    mac-address=00:15:6D:FC:61:4A server=dhcp1
add address=192.168.135.13 client-id="Name" comment="" disabled=no \
    mac-address=00:15:6D:FC:60:CF server=dhcp1
add address=192.168.135.14 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A6:9D server=dhcp1
add address=192.168.135.15 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:D2 server=dhcp1
add address=192.168.135.16 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:C2 server=dhcp1
add address=192.168.135.17 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:FA:5E:C7 server=dhcp1
add address=192.168.135.18 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:F0:5A:21 server=dhcp1
add address=192.168.135.19 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:FA:5E:A4 server=dhcp1
add address=192.168.135.20 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:FC:61:44 server=dhcp1
add address=192.168.135.21 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:FC:62:C0 server=dhcp1
add address=192.168.135.22 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:FA:39:19 server=dhcp1
add address=192.168.135.23 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:FC:63:5A server=dhcp1
add address=192.168.135.24 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:F0:5A:8E server=dhcp1
add address=192.168.135.25 client-id="name" comment="" disabled=yes \
    mac-address=00:15:6D:FA:5E:87
add address=192.168.135.26 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A7:5A server=dhcp1
add address=192.168.135.27 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:F8:18:13 server=dhcp1
add address=192.168.135.100 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:E0 server=dhcp1
add address=192.168.135.101 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:FE server=dhcp1
add address=192.168.135.102 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:70 server=dhcp1
add address=192.168.135.103 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:E5 server=dhcp1
add address=192.168.135.104 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A9:04 server=dhcp1
add address=192.168.135.105 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A7:95 server=dhcp1
add address=192.168.135.106 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:90 server=dhcp1
add address=192.168.135.108 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:C3 server=dhcp1
add address=192.168.135.110 client-id=name comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:EF server=dhcp1
add address=192.168.135.111 client-id=namet comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:6A server=dhcp1
add address=192.168.135.112 client-id="name" comment="" disabled=no \
    mac-address=00:22:3F:91:8E:08 server=dhcp1
add address=192.168.135.113 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:6D server=dhcp1
add address=192.168.135.114 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A8:04 server=dhcp1
add address=192.168.135.115 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:E6:A6:19 server=dhcp1
add address=192.168.135.116 client-id="name" comment="" disabled=no \
    mac-address=00:15:6D:F8:17:C8 server=dhcp1
add address=192.168.135.117 client-id=name comment="" disabled=no \
    mac-address=00:15:6D:E6:A9:02 server=dhcp1
add address=192.168.135.118 client-id=name comment="" disabled=no \
    mac-address=00:15:6D:F8:18:11 server=dhcp1
add address=192.168.135.29 client-id=1:0:15:6d:fa:5e:87 comment="" disabled=\
    no mac-address=00:15:6D:FA:5E:87 server=dhcp1
/ip dhcp-server network
add address=192.168.135.0/24 comment="" gateway=192.168.135.254

POOL

# jan/02/1970 18:54:31 by RouterOS 4.10
# software id = 
#
/ip pool
add name=dhcp_pool1 ranges=192.168.135.1-192.168.135.250

Not sure if this is what your looking for for network config.. im drawing a blank today

fewi · June 22, 2010, 2:28pm

/ip pool export
/ip dhcp-server export

dboillot · June 22, 2010, 6:09pm

what part of my network cfg do you need? i think i edited my post at the same time you posted how to pull the info down

fewi · June 22, 2010, 6:50pm

I don’t see anything wrong with that DHCP configuration. Are the clients connected via ether1?

dboillot · June 22, 2010, 7:03pm

Yes, the clients are connected to Ether1.
with DSL modems plugged in to ether2,3,4 and 5 doing PPPoE back to the ISP (AT&T)
as if the DHCP issues are not enough, it does not look like my PCC load balancing is working right.. (cfg for that was posted in another thread)

fewi · June 22, 2010, 7:12pm

When you configure a static address on a client, can you ping the .254 IP address on ether1?

dboillot · June 22, 2010, 7:16pm

Yep. I sure can. Can even do it with a Dynamic one. (in fact, i’m posting from a laptop connected to the RB493AH)

fewi · June 22, 2010, 7:26pm

Then the most likely cause is that the client identifier you’re setting isn’t actually sent by the client, so the request doesn’t match.

client-id (string; Default: ) If specified, must match DHCP ‘client identifier’ option of the request

http://wiki.mikrotik.com/wiki/Manual:IP/DHCP_Server#Leases

Try to remove them all with the below command:

/ip dhcp-server lease set [/ip dhcp-server lease find] client-id=""

And then test again.

dboillot · June 22, 2010, 7:39pm

can not change dynamic lease

is what i get. I am thinking that is normal right now since i have some dynamic addresses. it cleared all the client ID things, will try again. Thanks. Will add karma in a bit..

Now on to figure out why the PPC setup I have is only throwing traffic over 1 connection, suppose another new post is in order for that

fewi · June 22, 2010, 8:08pm

Yes, that would be normal.

And yes, PCC would best be handled in a separate thread so that it’s easy to find for other people with the same issue.