Ok I can confirm that PPPoE is only a single dynamic connection. The SNAT
plugin seems to work fine.
The problem I have is that I'm not sure how I can assign this address on the
local box so I can ping it externally and use it for remote access. It needs to
be an EXT interface somehow.
Any ideas?
Regards
Michael Knill
On 23/7/20, 12:22 pm, "Michael Knill" <michael.kn...@ipcsolutions.com.au>
wrote:
Yep its certainly a bit strange.
1) Yes completely different although the /30 is actually 4 useable
addresses as it's a PPP connection.
2) No I'm fairly certain that PPP can only allocate a single IP Address
which is the dynamic one. I would need to add the additional addresses to ppp0
once its up.
Note this is a routed range so I think it could be assigned to internal
devices and/or Astlinux local interface with NAT used to determine the address
that is source NAT'd for external traffic.
Hmm may need to play with the SNAT plugin and let you know.
Regards
Michael Knill
On 22/7/20, 11:31 pm, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com> wrote:
> On Jul 22, 2020, at 6:31 AM, Michael Knill
<michael.kn...@ipcsolutions.com.au> wrote:
>
> Hi Group
>
> I have moved to a carrier that only provides a dynamic PPPoE address
and if you want a static address they add a /30 routed range.
> Just wondering how I configure this in Astlinux? Do I use
EXTIP_ALIAS? How do I use this address for outgoing Source NAT?
Hi Michael,
For all these years, I have not heard of such a PPPoE configuration.
Are you sure you need a static IP :-)
The EXTIP_ALIAS would not apply since that is for physical interfaces,
not PPPoE.
Questions:
1) Is the /30 route completely different from the assigned dynamic /32
IPv4 ?
2) Does the PPPoE connection, via the underlying PPP connection,
automatically add the /30 as a route and associated with the ppp0 interface ?
OR, is this a static route and address that needs to be manually added to ppp0
after the PPPoE connectioin is up ?
--
ip addr show dev ppp0
ip route show dev ppp0
--
(sanitize any public IPs)
AstLinux has a firewall Outbound SNAT plugin that will SNAT outbound
traffic from select internal IPs/CIDRs, this may work for you.
The added problem here is since PPPoE can destroy and create the ppp0
interface, any associated static routes and firewall rules will be lost on a
PPPoE restart, so that needs to be kept in mind.
Lonnie
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Donations to support AstLinux are graciously accepted via PayPal to
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