forked from freifunk-franken/firmware
fff-network: Remove obsolete and unnecessary sysctls
Many of the set sysctls are either unnecessary, are already default in the kernel or in OpenWrts defaults, or the reason for them being explicitly set is unknown. Remove all those sysctls from fff-network, as unfounded deviations from default values will cause hard-to-debug problems in the future. The original motivation for this patch is the netdev_max_backlog sysctl, which was set to a very low value without any reason or comment. This hurt forwarding performance on mt7621 with DSA significantly and took quite a while to discover. Signed-off-by: Fabian Bläse <fabian@blaese.de>
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85513e0350
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net.ipv4.conf.default.arp_ignore=1
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net.ipv4.conf.all.arp_ignore=1
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net.ipv4.conf.all.forwarding=0
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net.ipv4.conf.all.send_redirects=0
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net.ipv4.tcp_ecn=0
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net.ipv4.tcp_fin_timeout=30
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net.ipv4.tcp_keepalive_time=120
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net.ipv4.tcp_syncookies=1
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net.core.netdev_max_backlog=30
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net.netfilter.nf_conntrack_checksum=0
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#Do not accept source routing
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net.ipv4.conf.all.accept_source_route=0
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net.ipv4.conf.all.accept_redirects=0
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net.ipv4.conf.default.accept_source_route=0
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net.ipv4.conf.default.accept_redirects=0
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net.ipv4.icmp_echo_ignore_broadcasts=1
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net.ipv4.icmp_ignore_bogus_error_responses=1
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net.ipv4.ip_forward=0
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net.ipv6.conf.default.accept_dad=0
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net.ipv6.conf.default.accept_ra=0
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net.ipv6.conf.default.accept_redirects=0
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net.ipv6.conf.all.accept_dad=0
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net.ipv6.conf.all.accept_ra=0
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net.ipv6.conf.all.accept_redirects=0
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# Learn Prefix Information in Router Advertisement
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net.ipv6.conf.default.accept_ra_pinfo = 0
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net.ipv6.conf.all.accept_ra_pinfo = 0
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# Setting controls whether the system will accept Hop Limit settings from a router advertisement
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net.ipv6.conf.default.accept_ra_defrtr = 0
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net.ipv6.conf.all.accept_ra_defrtr = 0
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#router advertisements can cause the system to assign a global unicast address to an interface
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net.ipv6.conf.default.autoconf = 0
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net.ipv6.conf.all.autoconf = 0
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#how many neighbor solicitations to send out per address?
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net.ipv6.conf.default.dad_transmits = 3
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net.ipv6.conf.all.dad_transmits = 3
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# Enable forwarding, otherwise not all local route are examined
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net.ipv6.conf.all.forwarding=1
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net.ipv6.conf.default.forwarding=0
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