!721 Router

Unanswered Question
Jan 18th, 2008

Have 1721 with sdsl wic and adsl wic, I would like to configure the above so that internal user can use adsl for internet access. External clients, smtp traffic, remote user, vpn etc can come in on sdsl, cisco pre sales say it is possible but cannot find application info on how to configure

I have this problem too.
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Geoffbunny Mon, 01/21/2008 - 00:34

My mistake I thought this forum was to aid fellow network engineers, if I took a course for every problem i have come across i would never work and would be going on courses full time.

Thanks

Geoff

patrickvanham Mon, 01/21/2008 - 00:29

If you use NAT between the ADSL link and the internal clients' vlan it should work fine. You'd also need to NAT between another vlan (for smtp, vpn and any other services) and the SDSL interface to provide for the incoming traffic. So you're looking at two inside and two outside NAT entries each with their own vlan and xDSL interface.

If you're using an ISA server (or similar) for in- and outbound traffic you need two NICs, one outbound in the VLAN towards the ADSL interface and one in the inbound VLAN from the SDSL interface.

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