Assigning Static IP to WAN from /29 subnet

RouterOS General
1

HI


I want to assign static address from subnet 74.165.169.163/29 to my clients. ( 4 ips)

I have also, another subnet 183.246.159.2/30 that i asigned to clients and it works OK with src-nat and dst-nat, vice-verse.

But it doesnt work for the 183.246.159.2/30 ips. ISP ( it is PPPoE dsl ) asigned me originaly one ip that is 164.165.169.165

The set i i have to give you better big picture is:

Originaly (at the begining for few months )
ISP ------>74.165.169.163/29 (pppoe on mikrotik 750g, done localy, in bridge mode)

Second i order the 183.246.159.2/30:
isp -----> 74.165.169.165(pppoe wan) ----routed thru to------> 183.246.159.2/30 ( works OK, dst-nat, scr-nat)

And this doesnt work, the last subnet i order is 74.165.169.165. They give my static ip subnet /29, that confused me . I tried to do the same what i did with the first subnet but it doent work. The first subnet gets routed thru this one looks like it doesnt.

ISP ----->74.165.169.165---------routed thru to------> 183.246.159.2/30
|-----> 74.165.169.165/29 (dst-nat,sct-nat, netmap DOESNT work to my client 192.x.x.x static ips)


Any idea what i am doing wrong?

Thank you

2

A few things:

subnet 74.165.169.163/29 to my clients. ( 4 ips)

/29 isn’t 4 IPs in any scenario I can think of. If you’ve been assigned a subnet that’s routed to your outside IP and you’re just going to NAT it rather than route it, then you can use the broadcast and network addresses, giving you two “extra” IPs.

Are you sure you really have 74.165.169.160/29 and not 74.165.169.163/32? I suggest you ping an IP from the /29 other than .163 [eg 74.165.169.161] from another internet connection and do a packet capture to see if they’re really coming down the wire to you.

You contradict yourself in your post,

But it doesnt work for the 183.246.159.2/30 ips

then

routed thru to------> 183.246.159.2/30 ( works OK, dst-nat, scr-nat)

3

HI

Thank you for you reply. I’m trying to upload image scanned on my scanner but the forum file upload give me http err. Anyway.


I was in rush creating the post sorry for confusion.

Basicly i want to assign static ips from subnet xx.165.169.165/29 to my LAN PCs and servers on LAN interface ex. eth 2: 192.168.2.1/24

I got first 1 static ip from my ISP that was xx.165.169.165 with Network: xx.248.154.121 interface: eth1 (WAN, pppoe , DSL modem in bridge mode)

Then i bough xx.165.169.165/29 subnet from them. I thought this going to be deferent subnet and my static IP xx.165.169.165 will be use to route traffic thru it, instead they gave me a subnet with my static IP insite the subnet.

I have another subnet xx.246.159.1/30 that works fine. Lets focuse on the xx.165.169.165/29

I tied everything like for the other subnet that works xx.246.159.1/30 dest-nat, scs-nat, netmap, masqurade etc. doesnt work at all. I run out of ideas, how this can be configure to assigne static IPs to my servers or LAN pcs.


FYI. My other goal is to hide/NAT the hotspots subnets behing each of the xx.165.169.165/29 public ip, Is this possible?

THanks you sir for you help.

4

No one?

5

Did you try a packet capture?

6

i dont need to do pocket capture. Read the question..


Thanks