Hi, all
CentOs 6.9
I already has cofigured brdge br0.
(user.pppoe)-------(server.brdge)-------(ISP)
So, now I want to filter out IP packets by IP adressess from PPPoE traffic that passes over the bridge. Server hasn't local ppp interfaces.
But. Then I seting up system variables:
bridge-nf-call-iptables=1
bridge-nf-filter-pppoe-tagged=1
User got a problem. Some sites are unable to load and give an error.
If I set variables like that:
bridge-nf-call-iptables=1
bridge-nf-filter-pppoe-tagged=0
or unset both to 0, all of sites working fine.
Seems like MTU Black Hole issure. I tried chage MTU by MSS value in iptables, but unfortunatly.
Is it netfilter bug? How to fix it?
bridge-nf-filter-pppoe-tagged mtu bug?
Support for security such as Firewalls and securing linux
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