I built a kernel with the following options:
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_DEFAULT_TO_ACCEPT
options IPFIREWALL_FORWARD

and put these lines to my rc.conf
firewall_enable="YES"
firewall_type="open"

as the handbook says.

I use the following command as root:
ipfw add 101 fwd pppgateway ipv6 from pppaddress to any

It throws "getsockopt(IP_FW_ADD): Invalid argument" error!

I have tried to set the following variables but the problem is still the
same.
sysctl -w net.inet.ip.forwarding=1 and
sysctl -w net.inet6.ip6.forwarding=1

Thoughts?



Wojciech Puchar-5 wrote:
> 
>> I am using laptop, FreeBSD 7.1 connecting to two ISPs (wlan and ppp) and
>> I
>> have IPv6 addresses. 'netstat -rn' says there is only one default gateway
>> (for example wlan's default gateway). My problem is the following:
>> If I ping the ppp tunnel from an other computer, my laptop recieves the
>> ICMP6 echo request over the ppp tunnel, but it answers over the wlan
>> interface. So If the laptop losts the wlan's connection, It becomes
>> unreacheable. I read some similar posts (only ipv4) about forwarding with
>> IPFW, but I was unable to solve my problem until now.
> 
> exactly. use ipfw and fwd command
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