Re: Howto setup one machine for specific ip pipe?

[sean darcy <seandarcy2@gmail.com>]

Brian Austin - Standard Universal wrote:
> which computers have IP addresses that are public/private?
> 
> b
> 
> sean darcy wrote:
>> I have an asterisk voip server in the local network. I have two 
>> outgoing connections, a large verizon pipe, and small, low latency 
>> pipe from broadview. I'd like traffic generally to use the verizon 
>> pipe, but traffic from the voip server should use the low latency 
>> broadview pipe.
>>
>> I've set up table 128:
>>
>>
>> ## eth0 is static to broadview
>> ETH0_IP_GATEWAY=xx.yy.zz.ww
>> ETH0_IP_ADDR=xxx.yy.zz.ww1
>> ip rule delete from $ETH0_IP_ADDR/32 table 128 priority 128
>> ip rule add    from $ETH0_IP_ADDR/32 table 128 priority 128
>> ## this is the route through broadview gateway ip
>> ip route add default via $ETH0_IP_GATEWAY table 128
>>
>> ip rule add    fwmark 0x1 table 128 prio 126
>>
>> ip rule add    fwmark 0x2 table 128 prio 127
>>
>> and then set-mark 0x1 to all packets from the voip server:
>>
>> $IPT -t mangle -A PREROUTING -i eth1 \
>>   -s $AST_IP_ADDR -j MARK --set-mark 0x1
>>
>>
>> But the asterisk server can't access the internet. I assume the 
>> problem is that iptable server isn't NAT'ing the voip server. That is, 
>> it routes the packet out through the broadview pipe, but doesn't send 
>> any of the responses back to the asterisk server.
>>
>> Any help appreciated.
>>
>> sean
>>

The asterisk server has no public address. Everything goes through the 
one machine running iptables which has the two public addresses - 
verizon and broadvoice.

sean