Hi,
I'm using a Bering Box with a multihomed configuration. I'm making load
balancing between 2 dsl lines.
The configuration it's almost like the one in Linux Advanced Routing Traffic
Control HOWTO.
I didn't have any problems until I upgraded to "Bering-uClibc 2.1 rc1 with
kernel 2.4.24".
Now, I can't get MASQUERADE working anymore with the 2 DSL lines.
In the syslog, I get the following line several times :
Bering kernel: MASQUERADE: Route sent us somewhere else.
If I connect only 1 line (and change the configuration), MASQUERADE works
just fine. So the problem, I think, it's when I use the multipath route.
I've search on Netfilter and Kernel mailing list, and I've found some people
with the same problem (with kernel >=2.4.23), and some of them proposed a
kernel patch for solving it.
Had anyone have the same problem using Bering? Is there any workarounds to
solve it?
Here are some information from my bering box :
Bering# ip route list
200.3.62.208 dev ppp0 proto kernel scope link src 200.117.202.237
200.3.62.208 dev ppp1 proto kernel scope link src 200.117.202.44
10.0.0.0/24 dev eth0 proto kernel scope link src 10.0.0.1 default
nexthop via 200.3.62.208 dev ppp0 weight 1
nexthop via 200.3.62.208 dev ppp1 weight 1
Bering# iptables -L POSTROUTING -v -t nat
Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
6 275 MASQUERADE all -- any ppp0 anywhere
anywhere
4 176 MASQUERADE all -- any ppp1 anywhere
anywhere
Bering# iptables -L FORWARD -v
Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
3 144 TCPMSS tcp -- any any anywhere anywhere
tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU
7 315 ACCEPT all -- eth0 ppp0 anywhere anywhere
0 0 ACCEPT all -- ppp0 eth0 anywhere anywhere
state RELATED,ESTABLISHED
2 100 ACCEPT all -- eth0 ppp1 anywhere anywhere
0 0 ACCEPT all -- ppp1 eth0 anywhere anywhere
state RELATED,ESTABLISHED
Bering# ip rule list
0: from all lookup local
32766: from all lookup main
32767: from all lookup default
Thanks in advance,
Mariano.
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