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Lejon
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Joined: Tue Dec 02, 2014 7:26 am

Can't NAT internet from pppoe interface to my lan

Tue Dec 02, 2014 7:53 am

hi mikrotikers

I'm very nooby to this and have a problem and would appreciate some help please.

i want to get an internet access to my lan from a pppoe client. i did the ip firewall nat rule:

"add chain=srcnat out-interface=pppoe-out1 action=masquerade"

and the ip route rule create itself automatically when the pppoe session starts. and still no internet access although there is internet when i ping using the pppoe interface from the router!

and when i sniff packets coming from the lan i see that it has the source address of the pppoe interface (i think that's means the nat rule works?) but there's no response, so what's wrong?
 
keema
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Joined: Thu Nov 06, 2014 12:54 pm

Re: Can't NAT internet from pppoe interface to my lan

Wed Dec 03, 2014 10:10 am

Hi.

1st, what RoS version are you using? Is the masquerade rule colored in red as invalid?
 
Lejon
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Re: Can't NAT internet from pppoe interface to my lan

Wed Dec 03, 2014 4:52 pm

1- 6.10
2- nope, isn't red.

Any ideas?
 
keema
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Re: Can't NAT internet from pppoe interface to my lan

Thu Dec 04, 2014 11:11 am

1. I would at this time use 6.19, 623 RC looks promising also, but it's not a stable release yet
2. can you ping e.g 8.8.8.8?
2.a. if you can and not e.g. ping www.google.com then it's a DNS problem
 
Lejon
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Re: Can't NAT internet from pppoe interface to my lan

Thu Dec 04, 2014 4:12 pm

Thanks for trying to help keema.
 
Thomas12081
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Re: Can't NAT internet from pppoe interface to my lan

Thu Jan 01, 2015 3:15 pm

Hello together,

I have the same problem I think.

For now I'm using a DHCP-Client on ether6 , because my Router is behind the fritzbox.
The internet is still running.

I want get rid from the fritzbox.

But when a create an PPPoE Client to connect to my ISP, the internet dosen't work.

The connection between the ISP and the router is working. I'm able to ping Google, by using the tools from the router and I got an IP.

Also the DNS-Translation in my local Network to google is working. I've proof it by using the console on a local Client "ping www.gmail.com"
So I saw a resolve to IP 8.8.8.8 but the ping dosen't got a response.

Have anyone an idea?

Thank you!
 
keema
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Joined: Thu Nov 06, 2014 12:54 pm

Re: Can't NAT internet from pppoe interface to my lan

Tue Jan 06, 2015 11:18 am

Hello together,

I have the same problem I think.

For now I'm using a DHCP-Client on ether6 , because my Router is behind the fritzbox.
The internet is still running.

I want get rid from the fritzbox.

But when a create an PPPoE Client to connect to my ISP, the internet dosen't work.

The connection between the ISP and the router is working. I'm able to ping Google, by using the tools from the router and I got an IP.

Also the DNS-Translation in my local Network to google is working. I've proof it by using the console on a local Client "ping http://www.gmail.com"
So I saw a resolve to IP 8.8.8.8 but the ping dosen't got a response.

Have anyone an idea?

Thank you!
Hi,

did you create a NAT masquerade rule?
 
deanMKD1
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Re: Can't NAT internet from pppoe interface to my lan

Wed Jan 07, 2015 1:00 am

Set the fritz box to work as bridge. then set pppoe connection on mikrotik. Conect properly with lan . LAN from fritz to ether1 (wan) port on mikrotik.
 
Thomas12081
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Joined: Thu Jan 01, 2015 2:42 pm

Re: Can't NAT internet from pppoe interface to my lan

Wed Jan 21, 2015 12:33 am

Hello together,

thanks for your messages.

I have create a NAT masquerade rule.

I would like to use only the mikrotik Router and a ext. ADSL Modem.

Here are some screenshots.

Thank you.
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