Cisco :: Two Asa Firewall Between Dhcp Client And Server?
Oct 19, 2012
Can I have two asa firewall between dhcp client and dhcp server. if yes what solution i have to have to get dhcp leases. should i have to configure dhcp relay on both the asa.
I have a asa 5510 vpn client groups configured and connected to the internal network DHCP server stops giving network service dhcp and the network goes down.
A Windows Server 2008 r2 with 2 internet ports. One (IP: 10.0.96.132) connected to company intranet and one (192.168.10.1) as DHCP server connect to several PCs (192.168.10.**) through a switch.The problem is the PCs (192.168.10.**) can ping the DHCP server (192.168.10.1) , while DHCP server (192.168.10.1) can not ping (192.168.10.**).How to configure the server so that all these PCs can access the intranet?
I have 2 units Cisco WLC 5508 running software version 7.0.220 with 70 over units Cisco AP 1262N and 1242AG. Some of wireless clients having problem to get the correct IP address from the DHCP server. There are 2 units of Microsoft DHCP. Both DHCP server ip have been configured on the Interface at the WLC. The core switch also being configured with ip helper. I've attached the debug output of one of the wireless client during the problem.
How to configure cisco 3560 to force the client only can get ip by dhcp-relay server ?
The company i am working in has 5 vlans which have been set an lay-3 switch(3560), uses the dhcp-relay server .(in svi configuration: ip helper-address X.X.X.X) well , that works ok~
Now , I got my problem: I need to force the client only can get ip by dhcp-relay server, that means if anyone set static IP manunally , he can't really access to anywhere (to provent anyone set static IP with malignancy )
I know if a h3c router , how to set this configuration n svi configuration : dhcp relay security address-check enable ) the how to configure on a cisco 3560 ?
I am trying to configure interface vlan1 to get an ip address from dhcp by entering the commnad ip address dhcp ios rejects the dhcp portion of my command as not recognised although it is referred to in Cisco manuals.my IOS version is c2950-i6k2l2q4-mz.121-22.EA14.bin.I get the same problem when I try to configure ip http secure-server on the switch. Is this a known bug or whether I have the correct IOS version for these commands?
Haveing issue with DHCP server handing out IP addresses to client connected to VLAN5 interface.ISP Router>Firewall -(WatchGuard Drop-in mode) I have several 3750 switches and one acting as a L3 switch. The L3 is configured as follow: [code]
If I connect a laptop to int fa1/0/10 I DO NOT get an IP address from the 10.100.0.8 scope. If I connect to another interface within the VLAN 1, I get an address from the 10.100.0.0 range.
We want that inside host should get ip from subnet 192.168.10.0 /24. This ip pool is configured in DHCP server (ip 172.16.10.1) which is connected to ASA2. There is no routing issue as we are able to ping DHCP srever 172.16.10.1 from ASA1. to do config needed on ASA1 and ASA2 , so that host connected to ASA1 inside interface can get ip from DHCP srever. We have configured 192.168.10.1 /24 to ASA1 inside interface which will be gateway to inside host of ASA1.
We have cisco 5510 and on our floor we have client who we provide internet connection. One of our client has small server and 2 computers and they want setup vpn connection so they can access their server from outside. We have only one static public ip for firewall and exchange. We don't want provide another public static ip to the our client so they can setup the vpn. Is their any other way to setup vpn for them? can they the use our 1 public ip for vpn?
I am using a fiber optic connection. I want to connect it directly to ASA5510. A WLC2504 will be connected to ASA and one Aironet AP will be deployed at first. (At this moment I am not using any Windows server but in near future I will need to deploy Windows Server 2003 in my corporate network) My questions are:
Can I configure ASA as DHCP server for my LAN?
Can I configure WLC as DHCP server for my LAN?
If we can configure both then what is the best practice from above two options? (I am new to Cisco stuff and first time user)
Do the problem caused by the modems itself or it just sign of faulty Ethernet switch (using 20 port Allied Telesis ethernet switch). Sometimes I cannot connect to internet due to "unidentified network" buy i can resolve this problem by restarting my modem + switch.
We have a Cisco 5505 ASA fireawll at a remote site. I can get the firewall to issue the IP addresses to the pc's, Is there a way for the pc's to get their IP addresses directly from our DHCP server?
I'd like to create dhcp server pool on ASA 5510. I was wondering how big is the DHCP scope that Cisco ASA 5510 can support? Are there any ASA models which can support up to subnet mask 22 for DHCP scope?
I will set up a Dhcp server on the inside interface of my pix. I would like to have the DHCP Server authenticate to the Active Directory Server that is located on the DMZ.
Inside --pix--dmz Inside interface Win 2008 DHCP DMZ interface Active Directory Server
What would be the issues that I could run in to when I try to authenticate this server from the inside interface to the dmz? I see that Dhcprelay option is available on the PIX 6.3 I'm guessing this is the only command that I need to use: dhcprelay enable dmz
I ve configures an asa 5505 for remote vpn with anyconnect. it works just fíne - from remote i can ping the Clients and Server inside, i can do RDP or Connect via SSH to any machine, map some volumes local and so on but: I can not connect microsoft sql server. It uses port 1433 for the first connect and establishes then a dynamic connection. So i am a Newbie - what rules or configs do i miss?
We've just started with the ASA 5505. We do run a DHCP server on the inside interface, so it is in the same VLAN 1 as all of the clients. However, we cannot get it to work.We can't use DHCP Relay, as the ASA 5505 only allows to relay to DHCP servers in a different subnet.Or do we have to move the DHCP server to a different subnet. If so, how would we configure that scenario?
Is there a way to configure a DHCP server for my internal subnet of 192.168.20.1 which is on a 3550 layer 3 switch from my 5505 ASA Firewall.My subnet of 10.1.1.0/30 is connecting my 5505 to 3550. All I'm trying to do is run a DHCP server down to my hosts. The only options on ASA 5505 is
dhcpd address 192.168.20.1 - 192.168.20.254 outside or inside, which conflicts with my subnet of 10.1.1.0 used to connect my internal subnet of 192.168.20.1 for the whole network.
When I used my router it did not need the (inside, outside) keywords and just an ip helper-address command. How do I configure my my firewall DHCP server to propagate the 192.168.20.0 network through my 10.1.1.0 connection.
Recently i had suffering with wireless connection problem, currently my wireless router connected to WAN directly, after that go into firewall and then go thru switch to end user PC, for LAN user there is no issue, but for wireless connected PC it is prompted with limited connectivity problem(DHCP is disable on router), after check with ipconfig /all. it seem likely due to wireless PC cannot get the IP from DHCP server. i am using DLink615 router. i had checked firewall setting there is firewall policy that connected all router ip into company LAN, but i don't think there is DHCP VPN setting up. is there anyway i can go thru firewall and get IP from DHCP server because if i set up DHCP on router, it cannot pass thru and access to LAN.
I am able to obtain IP addresses through the DHCP server for my clients and I am able to browse internet on the server 2k8.Server 2008 - Share Internet through DHCP server
I have a fresh install of LMS 4.0 on Windows Server 2008 Standart SP2. I have one NIC with static IP configuration. I also disabled DHCP client.The problem is follows: when I go to Inventory - Device Administration - Add/Import/Manage Devices, I always get this error:Error in communicating with DCR Server. DCR Server may be down. Please start the DCR Server and then refresh the page.Reload server/ Daemon Manager dont solve this.I try to beat this problem 2 days already. Second uninstall also doesnt solve the problem..
About a week ago I tried to clear log files which was 270gb (syslog.log) and after that restarted the server. And all inventory devices suddenly disappear! I could find it from search menu but cant access - cisco works said that there is no such a device in Device Repository or I havent enough right to view it (but i logged as admin). And after this i failed to add any device in Inventory. So I reinstall Cisco Works and get that DCR error..
I have a Cisco ASA 5505 I've configured as a DHCP server. I'm getting DHCP on workstations attached to the appliance, but I'm getting the following message when the appliance loads:DHCP Client: can't enable DHCP Client when DHCP Server/Relay is running on the interface DHCP: Interface 'inside' is currently configured as SERVER and cannot be changed to a CLIENT by a CLIENT featureI'm not trying to configure this thing as a client, so I'm not sure why the system is producing this message.
We recently upgraded our 5505s to 8.2(5) 26 and noticed that each will crash after a cerntain amount of time. Some crash every 30 minutes other will crash every 4 to 8 hrs. The only difference would be the user's home ISP and/or home router, if they have one. They are configured with a dynamic dhcp IP address for the outside interface and the crash files starts with the following:When we downgrade back to 8.2(5) 13 the problem goes away. Any known bugs for this version? I haven't been able to find anything yet. We do have one 5505 that does not have this issues. The only thing that may be different is that it was never at 8.2(5) 13. We had downgrade it from a 8.3 version.
how I can get to the DHCP client table on a Cisco 891 Router ? We just upgraded our router from a WRVS4400N to the Cisco 891. THe WRVS4400N has the feature DHCP client table that I can see the Client host Name and IP address,Mac Address I have CCP and CCP express installed on my system?
I have intergrated wlc module in 2800 series cisco router, switch, cisco 1130 lightweight access point, i configured dhcp on router for wireless client, deal is that AP taking ip address from router its ok, but client cannot take dhcp, what im doing wrong? here is configuration of wlc router and switch
I recently upgraded from a WRT54G and am having issues with a Win7 PC with wireless-N. Initially I had it configured static at 192.168.100.100 and everything worked, but the speeds were miserable (I followed all the forum posts and recommended settings). I noticed in the Status section of the router pages that the system showed up with the correct MAC address, but the IP showed as 192.168.100.10, which is the same as the router. Assuming this might be causing issues, I set a reservation for the system at .100 and set the client to use DHCP. However, now it won't pull an IP address at all. The status pages show the client with the correct MAC address, but an IP of 0.0.0.0. I've verified the MAC address a dozen times and rebooted the router and the client dozens of times with no change. Even when I removed the reservation, the system won't pick up an IP. I have a wireless-G client that's pulling an IP fine, so I know it's sort of working. The wired LAN is working fine, too. There are no IP conflicts, either. I changed DHCP to 'Always Broadcast (compatibility for some DHCP clients), but no change there, either. The client sees the network and still has a good signal, but just won't grab an IP.
My AP get IP from 6509, but client cannot get dhcp from my dhcp pool for client, what is the reason?i have 3750g switch with integrated WLC, i connect it to 6509 I did all configs yesterday here is outputs
WLC Interface Name Port Vlan Id IP Address Type Ap Mgr Guest -------------------------------- ---- -------- --------------- ------- ------ ----- ap-manager LAG 10 172.16.10.100 Static Yes No globus LAG 20 172.16.20.254 Dynamic No No management LAG 10 172.16.10.99 Static No No service-port N/A N/A 0.0.0.0 Static No No
Currently we're providing DHCP to wireless clients from a dhcp pool on a cisco 6500. Due to new requirements we need to move to windows 2008 dhcp and when I test this on an unused WLC (7.0.235.0) the client doesn't get an address.
When I do a packet capture on the client I see it requesting dhcp but not getting any response from the server. When I do a dhcp debug on the client I see the same (see attached file).
This seems to me to be a server issue but the same server is supplying addresses to wired clients.