Manual Failover to 2 separate Internet services using 1 L3 port
I have a customer insisting on a manual failover (2 internet links) using a Cisco 1941 using only 1 WAN port, ie Gigabit Ethernet 0/1 (GE0/0 = LAN)
Before he purchases an extra EHWIC for the 1941 to give him another L3 port he wants to manually take the Ethernet cable out of the primary NTD/NTU (fiber/Ethernet link) and plug the gig0/1 into the secondary NTU/NTD from the 2nd ISP.
When he purchases extra EHWIC for 1941 I will failover using standard IP SLA way but for now, I don't think using a ip address xxxx secondary command on Gig0/1 and a second default route using a higher metric will be enough
Is this possible and how?
Primary ISP WAN IP = 18.104.22.168 / Default gateway = 22.214.171.124 /30
Secondary ISP WAN IP = 126.96.36.199 / Default GW = 188.8.131.52 /30
ip address 184.108.40.206 255.255.255.252
ip nat outside
ip address 10.10.10.1 255.255.255.0
ip nat inside
ip nat inside source list 22 interface gigabitethernet0/1 overload
access-list 22 permit 10.10.10.0 0.0.0.255
ip route 0.0.0.0 0.0.0.0 220.127.116.11
Using this basic NAT/PAT config , how can I have it so he take out connection 1 and plugs in connection 2 (ie 18.104.22.168) and everything keeps on working.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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