Cisco WAN :: 881G DHCP Configure To Use Both Cellular Interface
Jan 22, 2013
I would like to configure the 881G to use both the cellular interface and Fe4 WAN port for internet connectivity.Interface Fe4 is connected to an ADSL router.
I have configure each interface with a default route and weighting:
ip route 0.0.0.0 0.0.0.0 Dialer0 200
ip route 0.0.0.0 0.0.0.0 FastEthernet 4 100
I need to configure Fe4 to get an address as a DHCP client:
interface FastEthernet4
ip address dhcp
no shut
duplex auto
speed auto
How do I remove Fe4 from VLAN1? There is some existing config around VLAN 1:
interface Vlan1
ip address 10.73.0.1 255.255.255.0
ip helper-address 192.168.140.13
ip tcp adjust-mss 1400
no autostate
ip sla 100
icmp-echo 10.64.4.15 source-interface Vlan1
tag 3G Keepalive
frequency 10
Then I guess I need to adjust my Internet-IN ACL to allow broadcasts and UDP 67 and 68?
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Jun 3, 2013
I have an issue regarding using cellular interface on cisco 881G. The 3G module is Aircard 504. SIMcard is working on other devices, it have obtain IP address from mobile operator. But on cisco881G it doesnt work.
Here is config:
cellular 0 gsm profile create 1 m2m
chat-script 3G "" "ATDT*98*4#" TIMEOUT 30 CONNECT
interface Cellular0
[Code].....
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Jan 6, 2012
Can Cisco 881G cellular interface (Modem Firmware Version = K2_0_7_19AP C:/WS/FW) work with r-uim cards? I can't find correct answer in documentation .
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Jun 5, 2012
I have a Cisco 881G with PCEX-HSPA-3G card for which I have successfully configured for internet. As the above one has come to end of life, we got the replacement 881G with embedded 3G modem.
I can't get Cellular 0 to use ppp encapsulation:
Router(config-if)#encapsulation ppp
Cellular0: Only SLIP encapsulation supported
Router(config-if)#
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Jan 25, 2013
I've been able to activate and configure the Cisco 819 router to connect to Verizon via interface Cellular 0 but when I connect a laptop to the router, int Cell 0 goes down.
Here's a snippet of what happens after I connect a laptop:
rt1#ping 8.8.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
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Feb 1, 2012
Have customer that we need 3G at new location. Their company is an AT&T customer.So we have got from distribution a 881G and it has a PCEX-3G-HSPA-US card with it.What do you do or need to get AT&T service on this card. You call AT&T they don't know what your talking about if you say Cisco 3G card?I don't see a SIM slot which most AT&T device have a SIM card?Is there somewhere special you have to call for these to get service? Any checklist for ordering and also configuring for AT&T?FYI, we will do DHCP with it and it will be our backup ISP on and ASA if the primary internet goes down. We will just use a 172.30.x.x addressing between the ASA Outside-Backup interface and the 881G.
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Nov 2, 2011
I have three routers 811 (independent), and the interface cellular 0 resets in all three.
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Apr 25, 2013
We're seeing a strange issue with a Cisco 819 that we're testing out. We are able to ping out over the Cellular interface just fine, but as soon as we plug a device into one of the FastEthernet ports we immediately drop the cell connection. The Cell interface then continues to bounce until we unplug the device. We are intending to setup a VPN tunnel, but we've even stripped all that out for the sake of troubleshooting.
Current configuration : 2832 bytes
!
version 15.2
[Code].....
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Apr 28, 2011
I'm having extreme issues in getting my vpn client to connect to a cisco router with a hwic-3g-hspa cellular interface
I have tested the config remotely by traversing the tunnel I have setup with a cisco vpn client and the client does connect, however when out on the road it doesn't respond, I'm litterally hitting my head against a brick here, everything just seem right I can't explain it.
I have done debugs and there is no sign of life, its as though when the vpn client connects to the router its not responding any way here is my config for the vpn clients part that is.
aaa new-model
!
!
aaa group server radius vpn-client-server-group-1
[Code].....
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Apr 6, 2010
I have problem with HWIC-3G-GSM configuration. The cellular interface doesn't get IP from ISP.The configured profile is always inactive.cellular 0/2/0 gsm profile create 1 m2m.plusgsm.pl chap plusgsm plusgsm
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May 9, 2012
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?
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Jan 21, 2013
I configured a Cisco 881 as a vpn-client.When I configure the wan-interface with ip add dhcp , it never gets an IP-address.When I remove the crypto map from the wan-interface , the interface gets an IP-address without any problem.According to examples in the Cisco documentation, I should work; and it works on a 831.
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Feb 21, 2010
I have an ASA 5505 configured to get a DHCP'd IP address from the ISP on it's outside interface. The problem I am seeing is when the ISP renews their IP address, the ASA 5505 is still holding on to the old IP address information. I have to either manually renew the IP or reload the ASA. I have the potential of rolling out hundreds of these devices and I would not like my customers to have to reboot their ASA everytime the ISP's DHCP lease experies. I am using an easy vpn autoconnecting to an ASA 5520. Static IP's are not an option on the outside interface of the ASA 5505's.
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Mar 14, 2013
on the outside interface i cant perform the command ip address dhcp setroute.I get the error: IP and subnetmask form invalid pair indicating broadcast or network address.The commands are there when I do the ? command. It just will not accept the command with or without dhcp.I am trying to test an ASA-5510 as a 4G failover to our ASA-5520. This is Verizon's solution but they did not provide IPs, they use passthru on the 4G modem so I'm trying to set up dhcp. It worked a few days ago. Not sure what Im missing. The IP I got last time from Verizon was 192.168.0.199.
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Mar 1, 2011
I have a 6509 with SUP2 w/msfc2 at home, I am currently have dsl for internet with static IP addresses. Due to AT&T not wanting to support faster speeds in my area, I have to look at another option. All of these will be dynamic IP addresses, cable, uverse, etc.
I need to be able to enable dhcp on the wan interface so I can connect directly into one of the gig ports (either on SUP2 or 6316) or on a 10/100 port on a 6348.
I have the following image installed s222-adventerprisek9_wan-mz.122-18.SXF13.bin, according to Cisco's feature tool, it is supported.
I have tried "ip address dhcp" on the interfaces but they will only accept "ip address x.x.x.x", I looked at "ip dhcp" as well and only get the option for "relay".
I would hate to have to put something else in the mix to handle the dhcp portion. I may be keeping the adsl for my mail server traffic and backup in case of an outage on the new provider. So I need to be able to track if a link is up.
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Nov 21, 2011
I've been running a cisco asa 5505 for quite some time and it has been running fine, now all of a sudden it starts to renew it's outside dhcp adress like every 2 hours. I dont think it's the ISP since I have another device connected also using dhcp to the same ISP and it doesnt renew itself, it's just the ASA. Rebooting it, makes it pick up an adress straight away. The interface seems to be up, the GUI just reports "no ip adress" and then the ASA get's a new IP after about 10-15 min without one. Pressing the renew IP adress button in the GUI throws an error.
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Jan 8, 2012
I currently have the managment interface set to my internal network using our DHCP server. We also provide another interface to WLAN for a chartity organization. Their interface and WLAN are locked out of our network (no routes, no nothing) with only VLAN tagging sending out over our backup internet connection. I have been tasked to take over their DHCP scope (255.255.240.0). I added the scope into the 4404 just fine but can't seem to assign it. So, for the sake of argument lets say:
Interface:
management VLAN 10 10.10.10.10 DHCP = 10.10.10.15
charity VLAN 20 192.168.160.2 DHCP = ????
[Code].....
If I tell the charity interface to use 192.168.160.2 for the dhcp scope it errors out. I also tried the DHCP override in the WLAN with no success. If I set either DHCP option for the charity to aim at the managment interface it does nothing as it can't find it..
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Dec 27, 2011
I've been using this setting for clients in small offices and what not, and since all they wanted was to give another nutch of security to their network, we've been intalling cisco routers 2600 series still outhere for their internet connections and we had no issues what so ever, not until we run into cable isp provider, and their dhcp wont be able to assign our interface a dynamic IP, this is the setting aplied to the router interface;
interface fastethernet0/0
ip address dhcp
ip nat outside
no ip redirects
no ip unreachables
no ip proxy-arp
Why it wont be seen or assigned an ip by their dhcp, I talked to their isp and they assigned a static ip (private one) and we still have the same issue, if i connect a pix 506e interface with the ip add dhcp assigned to it gets a dynamic ip right away...
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Dec 26, 2010
We have a Cisco 886G router connected to the internet. The router receives an ip address. We experience however a problem when the lease time expires. The router does not send a DHCP request to renew it's ip address in time. This causes an interface reset, and connectivity loss, after the lease time of 8 hours.
We are running IOS 880data-universalk9-mz.151-3.T.bin. Config on DHCP receiving interface is:
interface VlanX description To Internet MODEM ip address dhcp ip access-group TEST in!
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Feb 13, 2013
we have 4 department Finance, Marketing, HR, contracts. All are in different subnet. We need to install a single DHCP server to provide IP for all subnets.
We have one Layer 3 switch Cisco WS-C6513-E; Windows server 2003 DHCP server.
How to design the network ?
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Mar 21, 2011
We have both DSL and 3G connection to the 881G and both are up and running.There is a NAT for easy vpn device (10.10.10.2) on this router and currently pointing to DSL interface IP (206.206.206.9) ********ip nat inside source static 10.10.10.2 206.206.206.9 extendable*********
My current requirement is that NAT for easy vpn device should work on 3G if DSL link down.So how we can achive the NAT redundancy. Even when I removed the above NAT and pointing to Cellular0, I am not seeing any translations.
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Apr 21, 2013
i have a adsl modem that is sending dhcp reqeust and i want to use that on my cisco switchs 3560 48 ports.i want to use the interface port 0/48 as a WAN connection and i want to use the other interfaceports for DCHP pool.i have an d-link (dir655) router at home and i want to have the same situation on my cisco switch my WAN interface get from a DHCP reqeust an ip adress from the provider like 10.10.123.44 (for the cisco switch would this interface port gig 0/48)then i want to configere my LAN as a DHCP pool like 192.168.0.1 (for the cisco switch would this interface port gig 0/1 - 47 .
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Jul 10, 2012
i have WLC 5508 showing the below Logs , which prevent the users from connecting to the SSIDs , also its disconnecting the associted users DHCP Socket Task: Jul 11 09:54:08.992: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'interface-02'. Marking interface dirty.*mmListen: Jul 11 09:54:08.638: %MM-3-INVALID_PKT_RECVD: mm_listen.c:7671 Received an invalid packet from 10.21.1.25. Source member:0.0.0.0. source member unknown.it shows 3 to 4 times durring 1 hour ,
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Aug 2, 2012
I'm running a system that requires a third (and potentially fourth) DHCP server to be setup on each network in my network. The first two devices are Windows DHCP servers serving IPs from different address ranges for failover. The third DHCP is just a listener to receive OS information and device names to be logged in a database.
Currently this works like a charm for my wired clients as I can add in the third and fourth ip helper-address on each vlan and the information is received by the listeners. However, I cannot find anywhere in my WLC5500 to setup these extra two DHCP helper addresses.
The wireless vlan on my layer 3 switch has all the ip helper-addresses, but this doesn't seem to work, and the devices just use the DHCP servers set on the interface in the WLC.
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Dec 13, 2010
Can we Configure DHCP server in 3750 ? we have configure DHCP server in 1841 router but some reason we want remove router .
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Sep 9, 2012
quick question regarding a 3G access via a cisco 881G i have a partner sim card (with the same number as the one in my mobile) iserted into the router.now i have the problem that my mobile is unreachable (line busy), is there a way to use both sims at the same time?what do i have to change in the router configuration?
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May 24, 2011
I try to make working a 881G router with integrated 3G router (cellular 0) with Bouygues or Orange, but I don't found any working configuration
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Feb 26, 2012
I'm trying to find out what is the minimum downtime for a Cisco 2800 series LAN interface configured as DHCP client, in order to initiate a new DHCP discover. How much time does it need to take for the Cisco to "sense" the phy disconnection ?
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Feb 25, 2011
I am used to setting up access-lists on outside interfaces with ip addresses that are static. I have recently been given a site that is using a dyndns.org client for name to ip address resolution on an outside interface that is dhcp assigned. I created an access-list to open up ports 41794 and 41795 to an engineering application but everytime I try to connect from the outside I get a syn timeout. The application works when inside the lan. Basically I want to allow outside connections from anywhere on the outside to go to ports 41794 and 41795. I am running a Cisco ASA 5505 on version 7.2(4) Below is my conifg. what I may have misconfigured?
: Saved:ASA Version 7.2(4)!names!interface Vlan1 nameif inside security-level 100 ip address 172.31.2.1 255.255.255.0!interface Vlan2 nameif outside security-level 0 ip address dhcp setroute!interface Ethernet0/0 switchport access vlan 2!interface
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Apr 5, 2012
I've got a new CT2504 controller with software version 7.0.220.0 Regarding to [URL]I've tried to configure the internal DHCP on a dynamic-interface, but this is not possible:(Cisco Controller) >config interface dhcp dynamic-interface vlan401 primary 172.16.x.3 vlan401 Interface IP can not be used as internal DHCP server IP It works, if I use another IP (aka DHCP server) in the same subnet or in another subnet. It works also for the management interface.
(Cisco Controller) >show interface detailed management
Interface Name................................... management
MAC Address...................................... d0:c2:82:xx:xx:xx
IP Address....................................... 10.2.x.135
IP Netmask....................................... 255.255.255.240
IP Gateway....................................... 10.2.x.129
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Sep 5, 2011
How can i configure DHCP to use two different range of IP addresses. One range will be for example 192.168.0.* and the other range will be 192.168.1.* When the first range of ip is full the DHCP automatically assign IP addresses from the second range.
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Apr 2, 2013
I currently have an ASA5510 with 2 interfaces (outside and Inside) running remote VPN for clients and L2L VPN for a couple of sites. I have traffic entering the inside interface, matching interesting traffic, being wrapped up in IKE / IPSEC and sent out via the outside interface. All straightforward so far.Now I have a new VPN which is required to go over another interface and not the outside. The traffic comes in to the inside interface as normal and should be matched via ACL, encrypted and sent out th e new interface however the traffic is simply sent out of the outside interface and doesn't get any IKE headers. If I reconfigure the interface to be be the outside it does at least match the ACL, wrap it up nicely in IKE and try to get to get to the remote peer.My questions are why does this behaviour occur and why isnt the traffic marked interesting and sent out the new interface.I don't have any issues creating a new VPN if I want it to go external, I just add the required information to the outside_map but i need the traffic to be encrypted and sent over another interface. I not a huge fan of the GUI for this but I've tried both CLI and GUI with the same results.
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Jan 29, 2011
When I click on "DHCP Reservation" button in the web interface of the E3000 I don't see any information about the current devices and the reservation list.This problem occurs when my sattelite reciever tries to get an IP address from the DHCP.the name of the receiver is "dream box" (no special characters).I didn't have any problem in the past with my previous router (3COM)Since there are error messages in the page (screenshot is attached), I've tried to use different browsers but the result was the same (Firefox, Safari, IE 8)
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