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Enabling multiple DHCP replay server to different vlan
Hi
We just bought Power Connect 6224 for one our sites and now we are looking to use this switch as our core switch for our two separate networks. Here is what we are looking to do
1) Looking to enable inter vlan routing
2) Looking to connect two separate networks to this switch
3) Looking to use acl to filter traffic between two networks
4) Looking to use multiple DHCP servers for different network
i) We currently have two dhcp servers connected separately in windows 2003 environment
ii) DNS server for both networks is looking at dhcp server for name resolution.
Problem currently facing
1) Couldn't find the way to enable different dhcp server for different vlan. Only could find to enable global DHCP server and could only have one IP address entry
Question
Is there any way we can use two dhcp servers for different vlan? say i would like one dhcp server serving vlan 2-5 and another serving vlan 6-10.
Thank you in advance
Message Edited by agurung on 05-17-2007 12:08 AM
Message Edited by agurung on 05-17-2007 12:10 AM
bh1633
909 Posts
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May 17th, 2007 12:00
agurung
42 Posts
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May 17th, 2007 22:00
StarLog
203 Posts
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May 18th, 2007 01:00
Message Edited by StarLog on 05-17-2007 10:55 PM
agurung
42 Posts
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May 21st, 2007 10:00
Thanks for your diagram
We finally had a chance to test our new setup according to your advice and assigning different DHCP server for different subnet unfortunately didn't work.
here is what we did
We enabled DHCP replay but didn't assign any ip address for dhcp server as we are assigning to individual subnet. we use command like
-> ip helper-address 172.16.59.1 172.16.32.3
-> ip helper-address 10.0.26.1 10.0.0.2
We have enabled IP routing, have vlan configured, subnets are assigned to routing interface. Do we also need to enable routing like rip? my understanding is we only enable these routers if we want to connected to second router or so but all we are trying to do is communicate between vlan.
When we connect our test pc to related port pc doesn't get IP address assigned but if we assign static ip address to this pc, it can access other vlan. will appreciate if you could advice me if there is anything i might have missed.
I will post config tomorrow to clarify more as i am posting from my home i am not able to do that now.
Thank you again
Message Edited by agurung on 05-21-2007 06:53 AM
Message Edited by agurung on 05-21-2007 06:53 AM
StarLog
203 Posts
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May 21st, 2007 22:00
I know bh will chime in here with some good pointers to help you.
One thing is not clear to me. Are you saying your using static ip's on the clients.?
Our DHCP server had it's scopes like this:
scope 192.168.111.0
gateway: 192.168.111.254
DNS: 192.168.111.37, ALSO add ISP DNS here.
scope 192.168.115.0
gateway: 192.168.115.254
DNS: 192.168.111.37, ALSO add ISP DNS here.
scope 192.168.116.0
gateway: 192.168.116.254
DNS: 192.168.111.37, ALSO add ISP DNS here.
Message Edited by StarLog on 05-21-2007 08:01 PM
agurung
42 Posts
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May 21st, 2007 23:00
agurung
42 Posts
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May 21st, 2007 23:00
agurung
42 Posts
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May 22nd, 2007 05:00
!Current Configuration:
!System Description "Dell PowerConnect"
!System Software Version 1.0.0.27
!
configure
vlan database
vlan 100,104-105
vlan association subnet 172.16.56.0 255.255.255.0 100
vlan association subnet 172.16.59.0 255.255.255.0 104
vlan association subnet 172.16.60.0 255.255.255.0 105
exit
snmp-server location "2-154 Sussex St Sydney"
snmp-server contact "Sys Admin"
hostname "SYDMITCore"
stack
member 1 1
exit
ip address 10.0.120.2 255.255.255.0
ip default-gateway 10.0.120.1
interface vlan 100
routing
ip address 172.16.56.1 255.255.255.0
exit
interface vlan 104
routing
ip address 172.16.59.1 255.255.255.0
exit
interface vlan 105
routing
ip address 172.16.60.1 255.255.255.0
exit
ip routing
bootpdhcprelay enable
bootpdhcprelay serverip 172.16.56.50
ip helper-address 172.16.59.1 172.16.56.50 37
ip helper-address 172.16.59.1 172.16.56.50 42
ip helper-address 172.16.59.1 172.16.56.50 49
ip helper-address 172.16.59.1 172.16.56.50 53
ip helper-address 172.16.59.1 172.16.56.50 137
ip helper-address 172.16.59.1 172.16.56.50 138
ip helper-address 172.16.60.1 172.16.56.50 37
ip helper-address 172.16.60.1 172.16.56.50 42
ip helper-address 172.16.60.1 172.16.56.50 49
ip helper-address 172.16.60.1 172.16.56.50 53
ip helper-address 172.16.60.1 172.16.56.50 137
ip helper-address 172.16.60.1 172.16.56.50 138
username "admin" password 26a627dc180db13ff4b4bbe417a58387 level 15 encrypted
!
interface ethernet 1/g1
switchport access vlan 100
exit
!
interface ethernet 1/g2
switchport access vlan 100
exit
!
interface ethernet 1/g3
switchport access vlan 100
exit
!
interface ethernet 1/g4
switchport access vlan 100
exit
!
interface ethernet 1/g5
switchport access vlan 100
exit
!
interface ethernet 1/g13
switchport access vlan 104
exit
!
interface ethernet 1/g14
switchport access vlan 104
exit
!
interface ethernet 1/g15
switchport access vlan 104
exit
!
interface ethernet 1/g19
switchport access vlan 105
exit
!
interface ethernet 1/g20
switchport access vlan 105
exit
snmp-server community public rw
exit
agurung
42 Posts
0
May 24th, 2007 04:00
SlimJimE4
12 Posts
0
May 24th, 2007 17:00
agurung
42 Posts
0
May 24th, 2007 21:00
agurung
42 Posts
0
May 30th, 2007 11:00
Hi
We thought we should close this threat here by saying few words
We had decided to buy dell switches because of budget constraint but now in order to work in our environment we need to use three dell switches(at least 2 L3 switches) where as other switches like HP we would had to just buy 1 switch which would have done job what we wanted with much more flexibilities.
Conclusion this time we made a decision based on assumption that Dell L3 switches will be able to what we wanted to do and ended up costing more than what one L3 HP switch would have cost us.
Thank you again
Message Edited by agurung on 05-30-2007 07:07 AM
Message Edited by agurung on 05-30-2007 07:07 AM