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1941 router with wan and backup interface

mulhollandm
Level 1
Level 1

folks

I'm looking into setting up a backup interface for a remote site I have

the current configuration is a 1941 (15.1(4)M3) with two interfaces, lan and wan

I now need to create a failover path in case the wan link fails

I'm considering using a VSDL ISP who will provide me with an Ethernet port on a modem and then use PPPoE to authenticate to the ISP and get an ip address etc

I intend to use an IP SLA to create the failover condition and route traffic out the dialer interface if the primary wan link fails

traffic over both links will also be encrypted over a l2l tunnel using IPsec profiles

I've already set it up and tested in VIRL using standard Ethernet ports but haven't tested it yet with a dialer ip and PPPoE

I know what I'm looking to do isn't new but I'm hoping anyone out there can point me to a recent config guide or share their issues with a similar setup

thanks to anyone taking the time to read this or reply

1 Accepted Solution

Accepted Solutions

Mark Malone
VIP Alumni
VIP Alumni

Hi

between these docs should nearly get you up and running all have examples , pppoe,ip sla failover with pbr and the nat if required , just tweak it for your setup

https://supportforums.cisco.com/document/32186/dual-internet-links-nating-pbr-and-ip-sla

https://learningnetwork.cisco.com/thread/87317

http://www.ciscozine.com/dual-internet-connections-in-activestandby-mode-without-bgp/

PPPOE

http://www.cisco.com/c/en/us/td/docs/routers/access/800/software/configuration/guide/SCG800Guide/SCG800Guide_chapter_010110.html#con_1053427

http://www.cisco.com/c/en/us/td/docs/routers/access/800/software/configuration/guide/SCG800Guide/SCG800_Guide_BookMap_chapter_01010.html#con_1053288

EDIT: commands are same for 1941 as 800

good tshoot guide for pppoe

http://www.cisco.com/c/en/us/support/docs/long-reach-ethernet-lre-digital-subscriber-line-xdsl/asymmetric-digital-subscriber-line-adsl/71124-adslguide-pppoedsl-ts.html#adjust

View solution in original post

2 Replies 2

Mark Malone
VIP Alumni
VIP Alumni

Hi

between these docs should nearly get you up and running all have examples , pppoe,ip sla failover with pbr and the nat if required , just tweak it for your setup

https://supportforums.cisco.com/document/32186/dual-internet-links-nating-pbr-and-ip-sla

https://learningnetwork.cisco.com/thread/87317

http://www.ciscozine.com/dual-internet-connections-in-activestandby-mode-without-bgp/

PPPOE

http://www.cisco.com/c/en/us/td/docs/routers/access/800/software/configuration/guide/SCG800Guide/SCG800Guide_chapter_010110.html#con_1053427

http://www.cisco.com/c/en/us/td/docs/routers/access/800/software/configuration/guide/SCG800Guide/SCG800_Guide_BookMap_chapter_01010.html#con_1053288

EDIT: commands are same for 1941 as 800

good tshoot guide for pppoe

http://www.cisco.com/c/en/us/support/docs/long-reach-ethernet-lre-digital-subscriber-line-xdsl/asymmetric-digital-subscriber-line-adsl/71124-adslguide-pppoedsl-ts.html#adjust

mark

thanks for your help, it's greatly appreciated

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