Cisco WAN :: 5505 PPPOE Access Via VDSL Bridge Modem?
Apr 25, 2013
I just bought a 5505 to learn from and am trying to attach my VDSL modem as a transparent bridge.It goes....
Laptop >>> (VLAN1) Cisco 5505 (VLAN2) >>> VDSL modem >>> internet
X.X.X.10 >>> (X.X.X.254) ------ (Y.Y.Y.254) >>> Y.Y.Y.10 >>> A.B.C.D.
I'm using the ASDM, if I configure VLAN2 with the IP address of the VDSL interface I can ping the modem from the console session via Putty. If I take that off and configure up the PPPOE client I can't ping the VDSL modem, I'd expect that. If I then add in an IP address to the PPPOE client config like I assigned to VLAN2 it doesn't ping either.If I can't ping the VDSL modem I don't expect it would work but it seems I can only either give it a static address which pings but has no pppoe or give it a PPPOE config which means I can't ping the VDSL. why I can't ping the VDSL modem when the interface is set as PPPOE with an IP address?Presumably if I'm on the ASA console doing pings from there to the modem then I'm ruling out problems with the routing from the laptop (trying to isolate where the issue is)
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Sep 7, 2012
config to setup PPPoE on the cisco 831 router to be used with a modem in bridge mode. I have tired other peoples configs found on the web but, not all the commands were available on the IOS version thats on the router. Also note that I bought this as a used router and I dont have a service contract so I am unable to download an updated IOS. The router ver is 12.3(7)T9 and the IOS is c831-k9o3sy6-mz.123-7.T9.bin. Running config below is last tried still could not connect or get ip address from isp. [code]
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Dec 6, 2011
I recently changed my internet connection to DSL from Cable, so now I'm using PPPoE type of connection.
Right now my router is configured as Automatic DHCP with the modem doing the PPPoE connection. All is fine and well.
Since I own a PS3, and Nat Type 3 conection is really bad for my online gaming, I would like to bridge my modem and connect to the internet through my router. That way I can properly forward my ports, use QoS and effectively get a better connection on the PS3.
I was able to successfully bridge the modem, but the PPPoE config on the router isn't able to connect to the internet.
Modem and router have been reinitialized after the configurations were changed. I do have the username and passwords, and they were properly put on the router.
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Aug 8, 2011
I will install in the next days a 886VA router (VDSL over ISDN using PPoE). Since I have no possibility to verify the VDSL config, this is what i prepared. Is this config OK (only VDSL part) ?
controller vdsl 0
operating mode auto
interface Ethernet0
[ code]...
For VDSL over ISDN the interface Ethernet0 must be used instead of ATM . Is this config correct ?
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Feb 23, 2011
configure my ASA 5505. It is setup using PPPoE. What I want to do is this:
I have one of my IP addresses (99.23.119.78) setup for ftp using the ftp protocol to our internal IP address 192.168.1.3. What I need is to also allow for HTTP access but not just that, I need it to forward the http port to port 9000 because the web interface requires port 9000 for customer access. Previously on our old firewall customers were able to access the web interface by browsing to [URL]. I would like to not have to not require the port in the URL.
In addition, I would like to be able to setup a different IP address in our range (99.23.119.73) to be setup for http access using the standard port 80 for the same internal IP address (192.168.1.3). This URL will allow us to access the administration web interface for the FTP server.
Here is my current config:
Result of the command: "show running-config"
: Saved:ASA Version 8.2(1) !hostname ciscoasaenable password qVQaNBP31RadYDLM encryptedpasswd 2KFQnbNIdI.2KYOU
[Code].....
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Nov 25, 2011
I have a dir 655 coupled with a 320b modem for adsl. Now I must switch to VDSL. Can I use the router with a VDSL Modem? Which modem could be used ? I do not see dlink products ..
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Oct 13, 2011
I am using the WRT54G2 connected to a cable modem that requires a PPPoE login. I followed the Service Providers instructions and cloned the modems MAC address to the WRT54G and setup the PPPoE user id and password. I can then plug my PC into one of the Ethernet connections on the back of the WRT54G and everything works as expected. First I connect to the WRT54G2 and then I open a PPPoE connection in my network settings and it logs into the service provider and everything works as expected. But when I connect to the WRT5G2 wirelessly I connect to the AP fine. When I open the same PPPoE connection to the service provider it fails, the message says I have the wrong userid or password or that the protocol is not supported. Of course I know the userid and password is correct because it works when connected with Ethernet cable. I have tried disabling the security on the wireless network but that did not seem to work.The modem is a HomePNA HCNA Voice Endpoint.I am at the latest firmware 1.0.04.
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Mar 17, 2013
I want to dumb down a Cisco 886va to act as a pure vdsl bridge modem with a local ip to be able to do some admin work on the router. To some extent my config works, but i think the default vlan 1 kills my internet. When i connect the 88va the vlan bridge 7 and 8 goes up, the router behind connects via pppoe on vlan 7 but no traffic is going through. vlan 8 gets a dhcp lease for iptv and if i don´t switch the receiver on and off the traffic flows and the tv works. I am also able to connect to the local ip to access the web interface. [code]
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Oct 20, 2012
I recently upgraded my DSL service, which required installing a new VDSL modem/wireless router (Actiontec c1000a.) Before the upgrade, I was using an older standalone DSL modem with a Netgear router to provide wireless access to my gaming consoles, laptop, etc. Everything works as before with my new wireless router EXCEPT my son's laptop. All my consoles, iPods, and desktop CAN connect to the wireless network, and the laptop will connect over a WIRED ethernet connection. I cannot get it to connect to the wifi.
[code]....
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Nov 10, 2012
I desperately try to set up the X3000 as a router behind a vDSL modem. When I choose connection through Ethernet and then PPPoE, it never keep the credentials after reboot in spite of having saved the data before.
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Jan 5, 2013
I have 2 public ip, 1.1.1.1 anda 1.1.1.2. I'm connected to the ISP using PPPoE. I also have a router and a firewall. I want to assign 1.1.1.1 to router and 1.1.1.2 to the firewall. I do not want to NAT 2 times (one in router and one in firewall)That's why i want to bridge Fa0/0 and Fa0/1.Could this be done in Cisco router? I've done this command but it's not working as i want. I'm using bridge irb and bridge-group.
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Mar 13, 2013
Trying to get my 887va setup for VDSL but can't get to anything on the net -
Controller VDSL 0vpdn enablevpdn-group 1
interface ethernet0
no ip address
[Code].....
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Jan 17, 2012
I'm having a very difficult time getting my WRT54GS to work with my Westell 6100 modem. I've been bouncing around gathering info, and what I've learned is that the goofy way CenturyLink tech support told me to hook up my old wired router (modem line into outgoing (LAN) router port) is because the Westell 6100 is a "smart modem/router". Therefore, when I run the Linksys setup CD, it sees the modem as a router, and won't properly configure. I've also learned that the Westell modem can be "dumbed down" into simply a modem by putting it into "bridge mode", which is where I'm at right now - trying to get it reset to factory defaults and resetting the connection type from PPPoE to Bridge. In the meantime, I also reset the WRT54GS to factory defaults, and now I've got another problem: the router will not allow me to set up encryption. The default setting is "Disabled", and when I click the down arrow and try to make any selection at all (preferred selection is WPA2 Personal), it reverts to Disabled. I've also tried to change the router's IP address to 192.168.2.1 (and alternately to 192.168.1.253), so it won't conflict with the modem's IP, and it freezes up every time I try.
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Apr 27, 2011
I am using ASA 5505 with firmware 8.2(2). My ISP uses PPPoE as a WAN connection protocol. There is a problem with getting PPPoE session started on my ASA 5505. The debug output says that after negotiation of PPP-authentication protocol ASA receives a PADT packet from ISP’s concentrator. To get more information I captured all packets on outside interface with WireShark. Packet-dumps (in .pcap format) are attached in this post. I have tried all possible combinations of PAP/CHAP/MSCHAP values in “vpdn group MYGROUP ppp authentication” command. If you take a look at the packet-dumps you can see, that in case of “PAP” – ISP’s concentrator rejects negotiation (PAP is not supported by my ISP). In case of CHAP/MSCHAP (that ARE supported by my ISP) – ASA acknowledges the using of MSCHAP v.2 PPP-auth protocol, which is actually not supported by it…
Judging by MAC-addresses of ISP’s concentrators it is visible that Cisco’s equipment also is used.
The questions is: Why ASA acknowledges using of unsupported ppp-auth protocol during negotiation and what I need to do to resolve this issue? (ISP’s support says, that they cannot change PPP-auth protocol negotiation order. Also they says that I need to contact with manufacturer of my equipment).
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Mar 1, 2012
I am tyring to remotely diagnose a troublesome ASA5505
It is connecting via PPPOE and the original suscpicion was that the PPPOE was going down during heavy loads during the day, i.e 9am and lunchtime. I suspected MTU and have verified the MTU outside is set to 1492
However further troubleshooting doing a remote ping to the PPPOE address indicates that this does not drop at all.
When remoteley connected to the ASA my session dies and any outbound internet fails, then in a few minutes it comes back.
all the time the PPPOE line stays up?
One thought is that although the line does not go down it is being crippled with traffic and just getting so unresponsive it appears it has died.
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Jun 18, 2012
We currently use a linux software based firewall called IPCop that sits between our network and router (This is in bridged mode) IPCop conects over PPPoE and everything works fine.
However the system is not reliable and I fear not that secure so have purchased an ASA5505 now I have added the PPPoE info to the device using the ADSM software however although it picks up my external static IP I'm unable to access the internet. On IPCop I only had to enter the broadband credentials and it worked however I feel like I may have to add more to the Cisco, for example do I have to specify DNS servers and do I have to set a static route?
Here is my config file so far (Note I think I have turned on the ability to ping from internal to external). My config I have done through the ADSM as opposed to the CLI
: Saved:ASA Version 8.4(3) !hostname ciscoasaenable password 8Ry2YjIyt7RRXU24 encryptedpasswd 2KFQnbNIdI.2KYOU encryptednames!interface Ethernet0/0switchport access vlan 2!interface Ethernet0/1!interface
[Code].....
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Jan 25, 2011
I've been having this issue for about 3 months now, off and on, never seemed to be predictable but started happening more and more, which prompted me to look into it.
Currently, the DSL Modem is configured in bridge mode with the ASA handling PPPoE. The WAN address is being assigned via DHCP. The ASA is running 8.2(1). The WAN interface will drop it's DHCP lease and will not renew it without power cycling the DSL modem. I did a little bit of googling and found mention of setting "dhcp-client client-id interface outside", specifically this was an issue pre 7.2(22), but doesn't seem to affect my situation. Originally, I had the MTU on the outside interface configured as 1500, changing it to 1492 has not resolved my issue either.
I've enabled PPPoE and DHCPC debugging and posted the results below when the event occurs, I'm thinking this is moreso a PPPoE issue than it is a DHCP/DHCP Lease issue as I am not seeing any debug messages from DHCPC.
Code...
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May 15, 2013
I've struggled now for a couple of days to setup a PPPoe connection on our cisco 887va box. I can setup straight away on a draytek box so i know the connection is good.I can't get the line protocol to come up? It's connected via ethernet port 0 to an external modem. One thing i can't figure out is if ethernet 0 and fast ethernet 0 is the same physical port?I've attached the running-config below.
Building configuration...
Current configuration : 3738 bytes!! Last configuration change at 16:16:56 UTC Thu May 16 2013version 15.2no service padservice timestamps debug datetime msecservice timestamps log datetime msecno service password-encryption!hostname **!boot-start-markerboot-end-marker!!no logging bufferedno logging consoleenable secret *************
enable password ***********!no aaa new-modelmemory-size iomem 10!crypto pki trustpoint TP-self-signed-15463827enrollment selfsignedsubject-name cn=IOS-Self-Signed-Certificate-15463827revocation-check nonersakeypair TP-self-signed-15463827!!crypto pki certificate chain TP-self-signed-15463827certificate self-signed 01 **** quit!!!!!!ip cefno ipv6 cef!!license udi pid ***************!!username ************** privilege 15 password 0 *****************!!!!!controller VDSL 0operating mode vdsl2!csdb tcp synwait-time 30csdb tcp idle-time 3600csdb tcp finwait-time 5csdb tcp reassembly max-memory 1024csdb tcp reassembly max-queue-length 16csdb udp idle-time 30csdb icmp idle-time 10csdb session max-session 65535!!!!!!!!!interface Ethernet0description
[code]....
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Mar 3, 2013
I need to use a Cisco ASA 5505 on a BT Openreach connection, The configs that I have ben using are below -
interface vlan2
nameif outside
security-level 0
[Code]....
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Mar 12, 2013
I've an ASA 5505 connecting to a vdsl modem. The ASA is doing the PPPoE encapsulation. I've noticed the traffic amount on the outside interface is always twice the bandwidth it receives on its inside interface. I can't believe the PPP encapsulation is taking that much. Only two interfaces (inside and outside)
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Mar 8, 2013
I have rather huge connection at home. DL speed 80Mb, UL speed 3Mb.When I connect my PC directly to modem and configure PPPoE connection, I get 81Mbits/sec. When I connect my old ASMAX $30 router, I get 78 Mbit/sek. And I find it OK.But when I connect my EA6500 I get 28 MBits/sec. Same result on wire as on wireless connection. Of course If I enable prioritisation, I get even less, 12-15 Mbits/sec.I tried already even configuration with ASMAX as wired router and EA6500 connected to its LAN port. It gives me 50Mbits/sec.
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Mar 20, 2011
Is it possible to put the SRP 527 into Bridge mode to use it just as a modem?
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Dec 14, 2010
I have a TWC wideband modem and service. I know that they will enable bridge mode if I ask them. My questions are. After they enable it whats my setup? Do I just run a cable from their modem into a new router that I then set up on my own? Is it that simple?
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Dec 2, 2012
I'm trying to configure an ASA5505 behind an ADSL modem/router in bridge mode.The problem is the routing on the WAN side, because the gateway/next hop is a wierd address on the 10.x.x.x. range, outside the subnet.
So, I've got bridge mode working fine. If I take a laptop and configure it's ethernet adapter as the ADSL public IP with the wierd default gateway of 10.20.20.224 - windows complains about the gateway being outside the interface subnet but allows me to apply it, and it works, the laptop routes out to the internet fine with it's interface on the ADSL IP address.
So the bridging would appear to be working fine, negotiating the PPPoE ADSLand routing that transparently to the ethernet ports.But when I plug the ASA into that port and configure the ASA interface on the ADSL IP, I can't get it to route out properly.
interface Vlan11
nameif outside
security-level 0
ip address 60.x.x.151 255.255.255.0
route outside 0.0.0.0 0.0.0.0 10.20.20.224 1
With the ASA in this configuration I can't even ping from the ASA on the outside interface to 10.20.20.224 and get a reply. With a PC running Windows plugged into the same port on the same IP and the same gateway, I can ping it (and route out) just fine.
When in bridge mode the ADSL modem/router assigns a managament IP to the ethernet interfaces of 192.168.1.1, so you can still connect to the device to manage it. If I change the 'outside' address of the ASA to 192.168.1.100/24 I can then ping to 192.168.1.1 and get replies, so the physical connection is fine.What am I missing here?
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Oct 10, 2012
I would like know is that possible to connect two 5505 ASA in site to site VPN with 1 site using ADSL pppoe connection?
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Aug 29, 2011
I have an SMCD3GN (from Rogers) that is both a Modem and a Router. I also have a Linksys WRT54G router that I used to use before. The SMC is giving me a lot of problems. The connection is really bad often and my internet speed drops for no reason all of a sudden. I'm getting fed up and want my old router back.
I know it's possible to change the SMC into a modem (put it in bridge mode) and then connect my router and use the Linksys router instead of the SMC. The problem is, I don't know exactly how to set it up and would really like an explanation. I already know how to get into the SMC and Linksys settings as an admin.
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Feb 12, 2012
I have a Westell 7500 wireless modem that I would like to bridge to my Dlink DIR-628.
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Jan 15, 2013
I currently have frontier dsl internet and am using the isp provided modem/router combo and a DIR-655. I have the modem running in bridge mode and the 655 set to PPPoe connection, MTU at 1492. I confirmed the MTU setting on the isp modem/router before bridging it. The question i have is if the router MTU is set to 1492 does everything on the LAN side of the router run at 1492 or does it run at 1500 while the router breaks the packets up? Everything works fine but my pc's all use vista and i'm not sure where to check the mtu settings at and all my game consoles are set to mtu automatic so i can't really see what they're running at either.
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Aug 3, 2011
I currently have service with AT&T DSL. I have their Motorola Netopia 3347 modem that is set to Bridged mode and going to a Linksys WRT54GL router, which then goes out to a Cisco 24 port switch.AT&T has given us a Static IP to use, which was set up and working just fine when the modem was NOT in Bridged mode. Now that I have it set to bridge mode (as per a request by our VoIP provider), our IP address is no longer static at WhatismyIP.com...instead it changes frequently. However, I have a back up server here that needs to have a static IP so offsite back ups can find our modem/router and then the back up server.I am running Tomato software on the Linksys admin. When I go to the Basic->Network section, the WAN/Internet is set to PPPoE with the AT&T username and password that was originally used in the Netopia modem entered in. If I set this option to Static, it removes the username/password fields, so I do not think that my internet would work that way. Or, would the Netopia use the username/password to authenticate, and then just pass it through to the Linksys in bridge mode and THEN it would use the static IP? what I need to do to make the Linksys grab our Static IP instead of changing? Neither AT&T or the VoIP company can figure it out...
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Feb 6, 2012
I just figured out how to bridge my modem, it was working perfectly. I was walked through by my ISP. So I KNOW it's correct.When I go to set up PPPoE with my WRT160N V2 router, I seeUsername:Password:Service Name (optional)(unchecked) Connect on Deman: Max Idle Time(checked) Keep Alive: Redial Period 30 secondsI KNOW my user and pass are correct but i still have no internet when I bridge my router and put in the info.My modem has DHCP turned off so i turned it off on my router too...nothing.Basically what all settings do I need to change in the ROUTER ALONE to make this work when setting up a PPPoEbtw setup is
ISP>Modem>Router>Computer
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Feb 16, 2011
I want to achieve the following setup:
So basically I have a C877 and a Cisco ASA 5505 and I want to push the public IP of the ISP to the outside interface of the ASA so the Cisco 877 will only be responsible for ADSL and PPPoA. Don't ask me why I don' t use a modem/router instead. I know that is a waste to use the C877 in this way but I want to test the setup.
Right now the config of the C877 regarding ADSL and PPPoA looks like that ( I don't have the ASA connected yet, so all the PC are connected directly to the C877 right now):
interface ATM0 no ip address load-interval 30 no atm ilmi-keepalive pvc 0/35 encapsulation aal5mux ppp dialer dialer pool-member 1
interface Dialer1 ip address x.x.x.x 255.255.255.248 ip access-group OUTSIDEACL in ip nat outside ip inspect FWRule out ip virtual-reassembly encapsulation ppp dialer pool 1 ppp authentication chap pap callin ppp chap hostname xxxxxxx ppp chap password 0 xxxxxxx ppp pap sent-username xxxxxx password 0 xxxxxxx
ip route 0.0.0.0 0.0.0.0 dialer 1
ip nat inside source route-map Nat interface Dialer1 overload
interface vlan 100 is my LAN configured with DHCP.
how I should configure the C877 to push the public IP to the ASA?
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Dec 27, 2012
I extremely need PPPoE Dual-Access on my EA6500.I'v paid $225 and can't watch IPTV So, I'm somewhat disappointed with tis issue...
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Aug 1, 2011
Earlier today I attempted to change the setting on my Westell 6100 modem such that it would simply bridge the connection to my Linksys WRT54GS router, basically involving setting the router to bridge only and turning DHCP off. Now I no longer get an internet connection through my router when previously the connection had worked perfectly fine before. I following the steps of cloning the MAC address to the router and have done the proper resetting steps (computer, them router, then modem) but I simply can't get an internet connection through my router. The process to set up simple bridging from the modem what supposed to end up with the internet light no longer turning on but the light turned back on following one of the resets.
Currently, I can connect to the internet through the modem just fine but I get nothing when I include the router. I'm not sure if there are some other settings I'm supposed to be changing as I can't seem to find anything past what I've already done when researching online. At this point I would just be happy reverting the settings I've changed but I don't know how to access the modem now that DHCP is off.Basically, I'd prefer to be able to get the router working with these new settings but if that proves too difficult (as I've heard it can be when trying to get Westell modems to work with Linksys routers) I'd like to learn how to access the modem and change the settings back to what they were (preferably in as simple terms as possible as I don't particularly understand what a lot of these settings/configurations do).(And a bit of an aside, but I had attempted to do this modem bridging to "fix" perceived internet speed problems. I've been averaging around 300Kbps download rates ever since I've had this internet connection from Verizon when the supposed download rates should be between 1MB and 1.3MB. Doing this modem bridging had been reported to fix some modem/router conflicts and improved connection speeds for some.)
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