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Questions tagged [pppoe]

For questions about PPPoE (Point-to-Point Protocol over Ethernet), which provides a method to connect two PPP nodes by encapsulating PPP frames inside Ethernet frames.

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PPPoE authentication section

Thank you for reading, I have a question about PPPoE.I cann't limit PPPoE section on juniper MX960. please let me know, How to control and limit PPPoE section?
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1answer
43 views

Is it possible to set up a DSL lab environment?

I'm trying to figure out if I can setup a DSL lab for training purposes. If I have a switch or laptop running a PPPOE server, could I go from ethernet-to-modem then connect the modem's WAN port to ...
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1answer
32 views

How Pppoe subscriber with static ip sends ipcp request

How a pppoe subscriber with static ip sends ipcp configure request. For dhcp the subscriber can include 0.0.0.0 in configure request of ipcp packet and obtain its ip from remote server. But in static ...
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Upload and download data statistics in case of a client connected to broadband remote access server

In a deployment scenario as below, where client is connected to a BRAS over PPPoE. client<---PPPoE--->broadband remote access server(BRAS)<---------->WAN Should upload data statistics for the ...
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1answer
176 views

Dot1q tags, sub-interfaces

Please consider dot1q frames tagged 100 circulating on a LAN (VLAN 100). To go out onto the Internet, frames have to go through a PPPoE sub-interface which is configured as below: interface ...
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1answer
66 views

Can an Ethernet port with an SFP handle a PPP/fiber line?

AT&T put in a 150 Mbps fiber line at our business (not my home). They claim it uses the PPP protocol (I am told this is non-Ethernet), but is terminated in multi-mode fiber using 1000BASE SX (an ...
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37 views

Internet Provider and PPPoE

I have an internet provider, and they give me 14 IP addresses. Generally speaking, how can I set up a client machine on my network to be able to use one of these IP addresses but instead force the ...
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81 views

Router as PPPOE concentrator, PPPOE clients unable to get to DMZed static NAT server

I've been trying to figure out this problem, and I'm just not up to the task. I have a Cisco 2911 router as follows: Internet connection on GigabitEthernet0/1. Which has it's own static IP: A.B.C.38/...
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1answer
138 views

PPPoE Session Establishment

From what I have understood till now about PPPoE protocol. The CPE (RG) is the PPPoE client which connects to the BNG and establishes a session. The session is always alive unless the CPE is ...
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1answer
514 views

PPPoE setup Cisco 881W

I've been trying to fix this myself but I'm afraid I can't. I've tried basically every tutorial already, but it still doesn't work. Can someone here write a tutorial on how to get PPPoE working with ...
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1answer
251 views

PPPOE Config not working

I have a Cisco 881-W router with Cisco IOS C880 Version 12.4(24)T5. For some reason I can't seem to get an IP on the Dialer. I'm probably doing something stupid wrong. Interface IP-...
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1answer
240 views

Why is L2TP based on PPP and not PPPoE?

I'm trying to grasp why L2TP is based on PPP. I thought PPP was a protocol for point-to-point situations where you don't have Ethernet. So why/how is L2TP using PPP in order to establish communication ...
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2answers
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What does State PADISNT mean/stand for? (in CiscoRouter# show pppoe session)

I stumbled upon this while doing Person VUE Test Prep for CCNA and I came up with a question that google wasn't that helpful for. (This is just for curiosity, so a basic answer will do, but for others ...
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1answer
344 views

Huawei AR160 IPSEC over DSL Packet Loss

we are Struggeling with some IPSEC Configuration via a DSL Line on a Huawei AR169 Router. When the Tunnel is running over an PPPoE Dialer we notice about 70% Packet Loss in the Tunnel. When the ...
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1answer
455 views

How to decipher, why the pppoe interface has disconnected?

I am using a Ubiquity Edgerouter X, which is connected to a Draytek modem. This is the log from the pppoe interface: #######@ubnt:~$ show interfaces pppoe pppoe0 log Tue Jun 13 06:26:00 IST 2017: PPP ...
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2answers
355 views

What is PPPOE line protocol?

In serial wan connection we use PPP or HDLC line protocols,but where would we use PPPOE? What is Ethernet in this term 'PPPOE'?
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1answer
49 views

Where the password is stored when using ppp protocol

The question might sound dumb, but you never learn if you do not ask. When using PPP as a datalink layer, it offers you authentication by using username and password. Where is the username and ...
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1answer
533 views

Need help with PPPoE Subscriber Management on a MX80

I've been working with Subscriber Management using DHCP and a FreeRadius server and have been quite successful. Of course, once my company heard that it is possible for customers to bring their public ...
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1answer
2k views

PPPoE vs L2TP protocols

I am trying to find differences between PPPoE and L2TP.Both are tunneling protocols. When to use what? thanks, GL
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2answers
267 views

No RADIUS Accounting for Particular Server

We have a VoD server that's directly connected to Juniper MX104 BNG. Juniper MX104 is also acting as a BRAS. Right now if any user accesses that VoD server, all the incoming and outgoing traffic is ...
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2answers
14k views

What exactly is IPoE?

I am familiar with PPPoE but getting confused with the term IPoE. Is this same as usual ethernet with DHCP server? Does this have any auth built-in? How do I get authenticated? What can a client ...
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1answer
379 views

IPCP DNS : Configure-Reject [closed]

I'm working with a VxWorks PPP server running on an embedded system. There seems to be a problem with IPCP DNS negotiation. Each time the PPP server offers a IPCP to a client, the client seems to be ...
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1answer
188 views

PPP sessions on packet return?

Here is a picture of a an xDSL deployment : The BRAS is the termination for PPP sessions. The customer modem establishes a session with the BRAS, gets authenticated and can then access the ISP's ...
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3answers
2k views

Configuring PPPoE client through OMCI on Huawei ma5608T

We've received an OLT ma5608T and an ONT hg8245H for a short period of time - we want to see if Huawei is better than Zhone. We don't have a full documentation for this OLT because we're not a partner ...
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1answer
915 views

PPPoE interface doesn't use ARP

LAN border routers often use PPPoE protocol to communicate with ISPs and to access the Internet through ADSL. This link provides an example of output of ifconfig about an interface using PPPoE (page ...
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1answer
478 views

Help needed with PPPoE interface on Juniper MX104

I've been trying to configure dynamic subscriber management on MX104 and pretty much succeeded too. The problem I am facing now is, the MX is listening for and responding to PADI but as soon as it ...
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1answer
335 views

Cisco 7609 BRAS, mix NAT and public IP addressing for PPPoE clients

I would like to combine private and public addressing to PPPoE clients from a Cisco BRAS. Do you think is possible to do it using the same virtual template? If I define ip nat inside in the PPPoE ...
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3answers
6k views

Why use PPPoE and not use IP directly?

As far as I understand, PPPoE operates over ethernet, so for PPPoE to be usable you should already be able to send Ethernet frames to your ISP. At that point, why use PPPoE at all? Why not just run ...
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2answers
415 views

Fiber Network Bandwidth Control without Radius/PPPoE (Service Provider-Limit Client Bandwidth)

I have been reading and watching some information regarding fiber networks and their deployment. One interesting point that was raised was that in a fiber network generally a DHCP server is used for ...
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1answer
893 views

Load balancing among multiple PPPoE servers

What are the possible and efficient ways to load-balance users among multiple PPPoE servers? I have tried with VRRP. Is there any other efficient way?
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1answer
951 views

Can I use PPPoE and DHCP simultaneously?

In terms of subscriber management, I understand there are two major approaches - DHCP and PPPoE. I know I'm being very general, so give me some rope. If using DHCP, RADIUS/AAA will authenticate the ...
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1answer
41 views

DSL upload link breaks down. Where to look and not to look?

In a small office where I set up the network, we recently started to experience WAN problems on the (V)DSL line. Specifically, up to three times per day the upload link breaks down to almost zero ...
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2answers
661 views

Link layer protocols used by ISP?

Newbie networking question here... Do ISPs generally use the same link layer protocols (Ethernet, ARP to relate to network layer 3, etc.) that are used on LANs? In school I learned in some detail ...
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1answer
310 views

MikroTik: bisschoff load balancing problem? [closed]

I'm using bisschoff load-balancing .its really good and works fine.but it has a problem. The problem is when a adsl line don't have access to internet , it don't disable automatically and vice versa. ...
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2answers
421 views

Cisco PPPoE over FA with L2TP client only (no IPSec)

This started as a question, with my connection failing to come up, but after a bit of trial and error, the configuration is working, so I've edited it into a solution. Access lists and address ...
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1answer
963 views

Mikrotik API “no such command” when trying to get count-only of PPP connections [closed]

I don't know if I'm posting in the right forum. But well correct me if I am wrong. I am developing a service that counts the PPPoE users per MikroTik Device in the whole network every X minutes. I'm ...
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2answers
816 views

Issue getting Cisco 891 to connect to NTU via PPPoE

Other devices (MickoTik, Windows Laptop with builtin PPPoE client) seem able to connect to the NTU's PPPoE with no issue. Sanitized router configuration: ! ! Last configuration change at 06:55:18 ...
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1answer
591 views

Cisco IPv6 BNG Radius Attributes

I am trying to push out IPv6 unnumbered to an interface via radius. I am trying to do it in a similar fashion to how you would for IPv4: Cisco-AVPair += "ip:vrf-id=vrf-name", Cisco-AVPair += "ip:ip-...
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1answer
57 views

Link ADSL modem together [closed]

Is it possible to connect two (not more) ADSL modem together by using RJ11 in a local environment (ie: in a lab) ? +-------+ RJ45 +--------------+ RJ-11 +--------------+ RJ45 +-------+ | LAN 1 |...
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2answers
7k views

Why PPTP, L2TP, PPPOE are in OSI Layer2?

PPTP, L2TP, PPPOE - these are tunneling protocols. And they are Data link Layer protocols. Why? As I understood, Layer2 protocols work only in same subnet. They don't use IP addresses and cannot be ...
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1answer
2k views

PPPoE config with MTU

I wanted to check something about MTU size with PPPoE. Since PPP adds another 8 bytes, we should reduce our MTU to 1492 on our dialer interface. I wanted to actually test and do this, however I'm ...
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1answer
83 views

Addressing guest hosts

Suppose one wishes to provide guests with access to the Internet (and only the Internet) over one's network. For obvious reasons, switch ports will be assigned to a private VLAN created specifically ...
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3answers
5k views

PPPoE - How does it reach the Radius Server?

Hi guys I have a couple of questions related to PPPoE. When an ISP provides a service and they use a Radius Server for Authentication how does the client router know where to send the Authentication ...
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1answer
220 views

Juniper ERX 310 traffic not going more than 710 mbps?

We have a Juniper ERX 310 configured as B-ras, as per specifications of the router, we should be able to terminate 8000 PPP sessions, but we notice that traffic on the router interface not going more ...
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2answers
178 views

Simple question: Cisco 1750 AUX Port as “ADSL WIC”

I'm going to buy a Cisco 1750, but its lack the ADSL WIC Module. My question is, can I use the AUX Port to plug my RJ11 for DSL PPPoE Authentication? Like this: Cisco 1750 ISP --- AUX -----...
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1answer
2k views

How does PPPOE bridging work?

How does the authentication take place in a pppoe bridge setup assuming I have a bridge modem and a router that is capable of maintaining a bridge connection both connected to an un-managed switch? ...
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3answers
75k views

What is the difference between MSS and MTU?

I'm confused as to the difference between maximum segment size and a maximum transmission unit. Can someone please explain in relation to layers 2 and 3? If I had a packet of 800 bytes in the ...
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1answer
957 views

SonicWall TZ210 PPPoE on WAN interface, need transparent bridging to DMZ

I've got a SonicWall TZ210 which connects to the WAN via PPPoE on the X1 interface. I've got a /29 subnet routed into the box, and everything is running fine. Now, I need to route one of the WAN IP ...
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1answer
875 views

7609 + SIP-400 PPPoE: cannot route to the Internet

I am trying to configure a 7609 router with a SUP7203BXL, SIP-400 and SPA5xGE as BRAS. The configuration is at the bottom of the question. The sessions are created, but the clients can't reach ...
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1answer
2k views

Strange drop-outs in Cisco 7200 LNS lab

I'm testing several functions on emulated Cisco 7200 routers, in GNS3, prior to actual purchase. One of the functions I've been testing out is LNS functionality. I've been primarily following this ...