05-20-2012 02:48 AM - edited 03-07-2019 06:48 AM
Hi!
Is there any way to change source IP address to virtual IP address instead of interface's ip address when routing ip traffic through hsrp enabled interface?
The problem is I have /30 subnet to connect to my ISP and I would like to connect two routers to provide HA for WAN connection.
Is the only solution that ISP to provide /29 subnet instead of /30?
Thanks for any suggestion.
Jernej
Solved! Go to Solution.
05-20-2012 04:29 AM
Jernej,
The source address will always be sent as the real address on the router and not the vIP. What type of connection is this?
HTH,
John
05-20-2012 04:45 AM
With HSRP you will always need N+1 addresses - two routers, three addresses. VRRP allows you to use one less, but even then you would need a /29 to fit both of your addresses plus the ISP router.
Paul.
05-20-2012 04:29 AM
Jernej,
The source address will always be sent as the real address on the router and not the vIP. What type of connection is this?
HTH,
John
05-20-2012 08:01 AM
This is Ethernet connection with one usable public IP address.
It seems I'll have to ask ISP to provide /29 subnet with 5 usable IP addresses
05-20-2012 04:45 AM
With HSRP you will always need N+1 addresses - two routers, three addresses. VRRP allows you to use one less, but even then you would need a /29 to fit both of your addresses plus the ISP router.
Paul.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide