Hello,
195.x.x.9 -> First IP
195.x.x.1 -> gateway
255.255.255.255 -> network mask
212.x.x.19 -> Failover IP
195.x.x.1 -> gateway (same as first IP's)
255.255.255.255 -> network mask
The first IP is used by ESXi. I am setting mikrotik on the failover IP.
Normally I would have 212.x.x.19 in the address with identical address as the network (mask). Then I'd go to route and have 0.0.0.0/0 as the destination address with 195.x.x.1 as the gateway.
That somehow doesn't work... I suspect if the gateway is within the same /24 range as 212.x.x.19 it then should work. But how can I get it to work under this scenario?
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CelticComms
Forum Guru
- Posts: 1765
- Joined:
Re: gateway on a different IP range
The combination of IP number and network mask tells a host which range of IPs it can access on that interface. A mask of 255.255.255.255 is indicating that the given IP is the *only* address on that network. If there isn't a second IP with a wider mask on the same interface the system will not communicate with adjacent IP numbers.
The 255.255.255.255 mask is typically used when adding secondary IP addresses to an interface.
The 255.255.255.255 mask is typically used when adding secondary IP addresses to an interface.
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chrisintaipei
newbie
- Posts: 31
- Joined:
Re: gateway on a different IP range
195.x.x.9 -> First IP
195.x.x.1 -> gateway
255.255.255.255 -> network mask
yes i agree and i do think above is incorrect. and when i looked at the ESXi setting, it is showing 255.255.255.0. however that isn't the problem, for now (it should be a problem much later on when i am further changing the network layout).
212.x.x.19 -> Failover IP
195.x.x.1 -> gateway (same as first IP's)
255.255.255.255 -> network mask
this, i tested on a XP within the ESXi, worked, albeit that i need to regedit to change it from 255.255.255.0 to 255.255.255.255. before i got it working under XP, i challenged them as this setting just doesn't make much sense to me also. however i eventually had XP running.
so, if it works under XP, it should also work in mikrotik, isn't it. hence i am looking for a way to get it to work.
any suggestion what and how i can try it? at the moment i am out of idea...
195.x.x.1 -> gateway
255.255.255.255 -> network mask
yes i agree and i do think above is incorrect. and when i looked at the ESXi setting, it is showing 255.255.255.0. however that isn't the problem, for now (it should be a problem much later on when i am further changing the network layout).
212.x.x.19 -> Failover IP
195.x.x.1 -> gateway (same as first IP's)
255.255.255.255 -> network mask
this, i tested on a XP within the ESXi, worked, albeit that i need to regedit to change it from 255.255.255.0 to 255.255.255.255. before i got it working under XP, i challenged them as this setting just doesn't make much sense to me also. however i eventually had XP running.
so, if it works under XP, it should also work in mikrotik, isn't it. hence i am looking for a way to get it to work.
any suggestion what and how i can try it? at the moment i am out of idea...
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chrisintaipei
newbie
- Posts: 31
- Joined:
Re: gateway on a different IP range
ok after playing around with it, finally had it working
address 212.x.x.19, network 195.x.x.1
route dst address 0.0.0.0/0 gateway 195.x.x.1
it was a lucky guess
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one question though, if i move ESXi to be behind this router, then have 195.x.x.9 (first IP) used for another router, CelticComms, you mentioned that 212.x.x.19 is a secondary ip, could this set up cause the whole thing stop working?
address 212.x.x.19, network 195.x.x.1
route dst address 0.0.0.0/0 gateway 195.x.x.1
it was a lucky guess
=====
one question though, if i move ESXi to be behind this router, then have 195.x.x.9 (first IP) used for another router, CelticComms, you mentioned that 212.x.x.19 is a secondary ip, could this set up cause the whole thing stop working?