I've an 877W with four V LANS, All bridged (group) onto a BVI which is bonded to ATM etc for ADSL:
c870-advipservicesk9-mz.124-15.T5.bin"
1 is the backbone, and for the switch, and has DHCP running and working with no problems - x.y.1.z . Multicast is enabled so that various multimedia bits of kit can find each other.
2 is the "primary" WiFi, which has android devices as they cannot handle SSID not being broadcast or devices that can only do wep.(WiFi radio) it has DHCP, x.y.2.z which works fine. Multicast is enabled so that various multimedia bits of kit can find each other.
3 is a secondary WiFi for the kids, "hidden" ssid. They are fire walled so that bugs can't infect any other windows PC DHCP x.y.3.z.
4 Is a secondary WiFi for our laptops, "hidden" ssid .
For some reason, DHCP is not working on 4. it was working until the good lady of the house quizzed why her net was not working... I've concentrated on vlan4, as there are no "local" access-lists definitions to stop anything. I've enabled debug ip dhcp server, and can see requests serviced on Vlan2, but not on 4, I've enabled/re enabled encryption/ shields on Vlan4, but still can't see dhcp requests arriving and do not see them being stopped somewhere. I can see that the station authenticates OK, but if I connect the same laptop to v lan 02, requests pour in and are answered, proving it's maybe not a Microsoft problem.
Let me just say, I'm more or less self taught with the the net, no real mentoring, so 'think' I have the general idea of the different layers, access-lists etc. so this config is probably not ideal, but it works.
version 12.4
no service pad
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
[code]....
I have a Cisco 877W in place with an ADSL connection, which is working fine. However I cannot get it to hand out a DHCP address. If I associate with the AP over wireless then set a static IP I have full connectivity, similarly if I connect over Eth0 and set a static IP I have full connectivity. So it does just seem to be DHCP. Below shows my config... Any thoughts on the issue? Is it access-list related?I have checked with Wireshark and I see the DHCP request being sent out, but I don't see a DHCP offer being returned
I got the wireless up and working. one more issue, its that the clients take time to get an ip address and the ok light on the routers wireless side is blinking and not steady lit.
how do i get it steady and decrease the time for the clients to receive the ip address, both lan and wifi.
I'm configuring a Cisco 877 router as my firewall.My WAN IP will be assigned dynamically with DHCP. I will also get my default route from DHCP.I will need to configure ip inspection and packet filtering.I will need to configure NAT, I will eventually need to also configure a dial-up VPN.
i'm having troubles with a DHCP server, which is unable to give IPs to hosts that are on a different VLAN than the server.I have this little scenario, one L3 switch (SGE2010-48 without PoE) with 7 different VLANs configured in[CODE]
My team and I are having issues getting this configuration to work. We are using a 2811 Cisco router in class and the DHCP is not working. All other configurations for the other 2 routers are working but those were the easy ones. [code]
I'm using TP Link router. I went to DHCP reservation list and provided mac address of a computer and ip address to reserve the ip address for the computer. But it still not changing my current ip address. I rebooted router, rebotted computer, but it still not changing to the reserved ip.
I am trying to configure the DMZ on my SA520 router but without success.After a lot of tests I reduced everything to a very simple test case that is not working: I setted the "Optional Port Mode" to "DMZ" and enabled "DHCP Server" in the "DMZ Configuration", but DHCP on the DMZ does not assign any address.I am wondering if my optional port is broken or not.
I have a Cisco IE-3000-8TC running 15.0(2) EY1 IES-IPSERVICESK9-M. I am trying to configure the switch to auto configuration (download only the configuration file and not the software image) via DHCP from a combination DHCP/TFTP server. When I configure the switch with the commands (on initial configuration): Code...
I have a RVS4000 witch I use as router, and DHCP server. I have a WAP321 witch I have configured SSID with one VLAN. Both devices have fixed IP address. I can connect computer to the wifi access point. But the computer cannot get an IP address from the DHCP server of the RVS4000. If I set the IP configuration manually, it can get an access to the network and Internet.
With another wifi access point it works, the computer get an IP address for the DHCP.
What should I have to do to make my DHCP server works with my wifi access point ?
We have a single SGE2010 in layer 3 mode switch with a Server 2008 DHCP server.
We will be implimenting a Voip netowork where the PC's connect to the voip phone. I would like to create another vlan - 10. I have created the vlan and assigned the IP on the swtich.
Routing seems to be working. I can ping both IP addresses of the switch on either vlan.
I cannot get DHCP working. In the SGE switch I have enabled DHCP Relay, enabled option 82, set my DHCP Interface as VLan1, and specified the DHCP servers IP address. On the ports I have set the port where the DHCP server connects to as a trunk port with Vlan 1 untagged and vlan 10 tagged. I have set the ports where the phones connect as a trunk port with vlan1 untagged and vlan 10 tagged.
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.
Local DHCP (via the 5508) is for the guest network while the management and voice use the Windows DHCP server.
My problem, Voice and guest work fine. I have two SSID's (one 802.1X and the other PSK) that use the management interface that will not get an IP. I have enabled dhcp proxy from the cli on the controller. I tried with the management VLAN tagged and untagged.
setup a DHCP server on a WLC 2504. I'll try to resume my configuration:
I have 2 networks: inside users (vlan 1) and external users (vlan)
My controller uses the port 1 to connect to the switch, which has a trunk with WLC.
I have two routers, one using vlan 1 (192.168.3.0/24) and one using vlan 10 (200.X.X.X). All ports to these routers are access ports on their respective vlans.
I have 2 SSID, one for inside, other to outside. Inside is working very well.
To the outside I created a DHCP escope and already set the IP of the management interface 192.168.3.119.
I'm having troubles with this firmware in a SG300-28 switch. Actually the DHCP server, a new feature in this firmware release, doesn't work correctly. DHCP static reservations are not working: CLient ID and MAC address are not recognized correctly, and the DHCP server assigns the first free IP in the pool, rather than the reserved one.If Cisco engineers read this, plese correct the issue.
I seem to be having a problem with DNS name resolution after configuring my router (Cisco 3725 running IOS image: c3725-adventerprisek9-mz.124-25.bin) for handling DHCP requests.
Before I made the change, everything was working correctly; I could ping Google.com from a computer inside my LAN and would get response from one of Google's public IP's like normal.
I had a separate DHCP/DNS server running Windows Server 2008 handling the DHCP request and DNS queries.
When I made the change, I turned off the DHCP/DNS server and issued the following DHCP commands to my router:
So I have a 2600 that I have configured three sub interfaces on. FA0.0.1 is set for DHCP and supports VLAN 1. FA 0/0.2 for Voice, FA 0/0.3 for Data. I have this router interface plugged into FA 0/24 on my 3550 and the 3550 is configured as a dot1Q trunk (I have attached configs for RTR and SW).I have most ports configured as access VLAN 1 which is where i have my ISP connection plugged FA0/1 on the 3550. When I connect the service provider link FA0/0.1 never picks up an address. If I take my internal DHCP server and connect it to FA0/1 of the 3550 it snags an address almost immediately.In my mind this validates that my config is fine. I also took the same cable from the service provider cable modem and connected it to my laptop and the laptop is pulling DHCP.
I am upgrading from 3750-E IOS 12.2 to 3750-X IOS 15.0
I have a dhcp pool set up to give out an ip address based on the Physical port of the switch. I also have it configured to give out "reserved only" addresses.
The configuration works when i plug a dhcp device in the 3750E. (IOS12.2) The configuration does not work when i use the same config on 3750X (IOS15)
When i debug dhcp, i see the DHCP discover message come in, but no offers or anykind of response from the 3750X.
If i remove the "reserved only" line the switch gives out IPs, but of ocurse not the ones i want. I did that to prove both the client and the switch can give out an IP.
So i have a feeling the subscriber-id client-id interface name mapping is not right, or not created.
Here is a snippet of config.
! no ip dhcp use vrf connected ip dhcp use subscriber-id client-id ip dhcp subscriber-id interface-name
I recently installed DHCP snooping on a 3750v2 switch (Version 12.2(55)SE4) and configured the uplink(Po2) as a trusted port. The problem is that clients cannot receive an IP address. When I disable DHCP snooping it is working properly. DHCP snooping is configured correctly but I don't have an idea how to resolve it. [code]I tested the solution on the same kind of hardware switch and firmware and it worked out fine. What is causing the clients not to receive an IP address from the DHCP server?
Cisco 877W. I configured it for PPPoE. But once I plug in the ADSL line, the dialer interface will get IP Address. But after like 2 minutes the PPP link will go off and I will get this log message: "Interface Vi1 unbound from profile Di1".
I am using a company called Zen for adsl, I have 8 IP from XXX.XXX.XXX.248 to - XXX.XXX.XXX.255, Gateway is 254, Address 249-250-251-252-253 I would like to appear at the 4 sockets at back of router, and 252,253 will be used for a server...I understand I should be using Routed IP , but I cannot get it to work, I can ping out to google from the server, but the server is not live to the world. [code]
I had the Cisco 877W Router working in my old company. The old company was closed and I bring all of network equirments to new company.I am trying to setup this router to new company but lost menu, console cable and software CD.
I am running an 877W in the home that for the most part works fine, however after being connected for a variable amount of time I partially loose my DSL connection. Line sync stays up, but the traffic is lost.
A shut/no sut of the atm or dialer interfaces does not resolve the issue, only a reload or power down/up will fix the prob short term till it happens again.
Am currently running advipservicesk9-mz.151-3.T1, but have also rolled back to advipservicesk9-mz.124-24.T5 which has the same issue. Have tried a 857W with the same results. So ruling out IOS and hardware, its pointing to a config issue. It has also only been an issue since changing from ADSL1 to ADSL2+.
interface ATM0 no ip address no shutdown no atm ilmi-keepalive exit
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I've tries some changes mentioned here and from other sites, but no success yet...
I have a working easyvpn setup. We need to change the HQ ip address (current it is i.e 85.146.110.101). This is ACL is applied to Fastethenet conecting to ISP:
interface FastEthernet4 description $FW_OUTSIDE$$ETH-WAN$ ip address dhcp ip access-group 101 in ip inspect SDM_LOW out ip nat outside ip virtual-reassembly duplex auto speed auto crypto ipsec client ezvpn Acom
As soon as I apply again the ACL to interface Fastethernet 4, access to internet is lost. If I put original ACL 101 (with ip address 85.146.110.101) it works fine.
So I am wodering what wrong with may ACL? Should I make the change via SDM not CLI (to be honest I did not know/use SDM before today)?
While i was looking around in my stuff in the office i have found a Cisco 877W ADSL router .. so i have decided to use it instead of the one i am using now which is provided by the ISP that's made by Huawei.Anyway i have a good knowledge about basic cisco router configuration but i had never configured ADSL Cisco router, so i looked around on Cisco website, and i was lucky to get this two linksCisco DSL Router Configuration and Troubleshooting Guide - Step-by-Step Configuration of PPPoA with a Dynamic IP Address - Cisco Systems[CODE]
Looking to setup a backup router for our disaster recovery plan. We currently have a Cisco 877W that was setup by our ISP. I can log into the device with Telnet and a console cable, but I am not good using IOS commands, so I would like to use CCA. Unfortunatley, I cannot access the router using the software. I assume something is disabled in the config. Like HTTP or something.
A client of mine is using a Cisco 877w wireless router, they have one IP phone connected to one of the RJ45 ports on the back of the router and their main desktop is also plugged directly into the router - this all functions perfectly.However, the router is in a private house and as such it provides connectivity for all other wireless devices such as iPhones, Ipads and Xbox Live etc. The problem is that the router only allows 5 devices to be connected at any one time and when a sixth attempts to connect to the router the first device (the IP phone) is diconnected automatically.
So my client can be using the IP phone for an important call and his son walks in with Iphone and Xbox, friends etc etc and the IP phone is immediatley disonnected from the router. I beleive that the router should allow more than 5 devices to connect and would hope there is a way of stopping the IP phone constantly being disconnected.I have already paid for "Cisco Engineers" to attend this site but they cannot get it working.
I would like to configure an 877w I just bought. It's connecting to a UK ADSL2+ link.I'm a penetration tester and I want to put the Cisco router in front of my existing firewall which has an IPS on it, so that it doesn't get in the way of port scans and vulnerability scans. My ISP has issued me with 14 usable addresses a/240 subnet and basically I want to be able to use the route with just the public IP addresses. I have configured Cisco routers before, but never with this type of configuration. It's always been single public IP address NAT'd through to one or two internal LAN's.
It will be nice if I could assign the wireless and fast ethernet ports to the same VLAN using the public addresses. I don't want to use DHCP I'm quite happy statically assigning IP addresses to the computers wireless and LAN interfaces. I am reasonably certain this is possible because not sure how to do it and a little busy at the moment carrying out penetration tests.
I have a Cisco 877w (configuration shown below) and i am trying to use a Photo Transfer App on my iPhone4s and iPad3 which allows transfer of photos and videos between the devices using WiFi, the only thing is i cannot get my devices to communicate with each other and i suspect that this is to do with the configuration of my router as the app works perfectly using bluetooth but obviously a lot slower. I cannot even ping the devices from my pc which is also on the same WiFi network. How i should tweak my config?
I'm having a business DSL-connection which requires a modem from the provider (It cannot be replaced by another modem/router)I want to know if it is possible to place the Cisco 877W-G-E-K9 behind the modem and set it up as an VPN-server.The internet connection wil be established in the modem/router of our provider.
