Hi everyone. I'm trying to do some strange things to the routing table, and
I can't get them to work.
Our ISP assigned us a /26 subnet. xxx.xxx.xx.1 is the main router, a Cisco
2511. xx.xx.xx.2 is the main server, and there are a few machines. This
server, a FreeBSD is an access server, which allowed our Wireless customers
to access the internet. The BSD server has 2 NICs: one to the public
internet, and the other to the Access Point. We had to move from a PPTP
setup to a DHCP setup because PPTP keeps disconnecting the customers. With
PPTP, the machine did Proxy-ARP so I could give the customers public
addresses via PPTP.
Now with DHCP we moved the customers to a NAT setup, and reserve public
addresses for special customers. The problem is, I can't route the public
addresses to the second NIC.
What I did was this:
nic 1: xl0, xxx.xxx.xxx.2 netmask 255.255.255.192
nic 2: xl1, 10.5.5.10 netmask 255.255.255.0
nic 2: xl1, xxx.xxx.xxx.4 netmask 255.255.255.255 alias
on the main router, I added static route of xxx.xxx.xxx.4/32 via
xxx.xxx.xxx.2, and it worked, I get pings from the public internet.
so I added a machine on the private LAN and set it an IP of xxx.xxx.xxx.5/24
gateway xx.xxx.xx.4, and a static route on the BSD server of
"xxx.xxx.xxx.5/32 via xxx.xxx.xx.4", trying to route packets to .5 via .4
instead of .2, so packets would go via xl1 rather than xl0. But it doesn't
seem to work. I get TTL exceeded, even from inside the BSD server. Also on
the main router to the public internet i added a route to .5/32 via .4.
How can I make this work?
Thanks in advance,
Hernán
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