On Sun, Jun 28, 2020 at 1:28 AM Tom Eastep <teas...@shorewall.net> wrote:
>
>
> Can other hosts connect to this site out of the ppp interface?

Now that you mention it, on the Shorewall system itself I'm seeing
something unexpected.
I should be able to access this or any other site through any of my
ppp links (there are three: ppp1 has IP addr. 1.1.1.1, ppp2 has
2.2.2.2 and ppp3 has 3.3.3.3).

However:

# links -bind-address 1.1.1.1 http://4.4.4.4 -> FAILS (timeout)
# links -bind-address 2.2.2.2 http://4.4.4.4 -> FAILS (timeout)
# links -bind-address 3.3.3.3 http://4.4.4.4 -> connects and displays properly

Any other web site other than 4.4.4.4 works fine on all 3 ppp links
from the Shorewall system itself.

A tcpdump on each failing ppp link while trying to connect shows what
was observed in my previous post.

Could this be simply that my ISP is failing to route this website
properly when connecting through ppp1 and ppp2?

Restarting the failing ppp links or rebooting the modems does not
change anything.

Would a Shorewall dump help somehow, or is it surely an ISP issue?

The following workaround solves my problem for the time being, but I'd
rather understand what's happening:

MARK(3):P       0.0.0.0/0       4.4.4.4

Thanks,

Vieri


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