diff options
Diffstat (limited to 'docs/configuration/firewall/ipv4.rst')
| -rw-r--r-- | docs/configuration/firewall/ipv4.rst | 58 |
1 files changed, 54 insertions, 4 deletions
diff --git a/docs/configuration/firewall/ipv4.rst b/docs/configuration/firewall/ipv4.rst index abae31a5..5fc9bd4c 100644 --- a/docs/configuration/firewall/ipv4.rst +++ b/docs/configuration/firewall/ipv4.rst @@ -771,13 +771,13 @@ geoip) to keep database and rules updated. invert the criteria to match is also supported. For example ``!IFACE_GROUP`` .. cfgcmd:: set firewall ipv4 forward filter rule <1-999999> - ipsec [match-ipsec | match-none] + ipsec [match-ipsec-in | match-ipsec-out | match-none-in | match-none-out] .. cfgcmd:: set firewall ipv4 input filter rule <1-999999> - ipsec [match-ipsec | match-none] + ipsec [match-ipsec-in | match-none-in] .. cfgcmd:: set firewall ipv4 output filter rule <1-999999> - ipsec [match-ipsec | match-none] + ipsec [match-ipsec-out | match-none-out] .. cfgcmd:: set firewall ipv4 name <name> rule <1-999999> - ipsec [match-ipsec | match-none] + ipsec [match-ipsec-in | match-ipsec-out | match-none-in | match-none-out] Match based on ipsec. @@ -980,6 +980,56 @@ geoip) to keep database and rules updated. Match when 'count' amount of connections are seen within 'time'. These matching criteria can be used to block brute-force attempts. +Packet Modifications +==================== + +Starting from **VyOS-1.5-rolling-202410060007**, the firewall can modify +packets before they are sent out. This feaure provides more flexibility in +packet handling. + +.. cfgcmd:: set firewall ipv4 prerouting raw rule <1-999999> + set dscp <0-63> +.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999> + set dscp <0-63> +.. cfgcmd:: set firewall ipv4 output [filter | raw] rule <1-999999> + set dscp <0-63> + + Set a specific value of Differentiated Services Codepoint (DSCP). + +.. cfgcmd:: set firewall ipv4 prerouting raw rule <1-999999> + set mark <1-2147483647> +.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999> + set mark <1-2147483647> +.. cfgcmd:: set firewall ipv4 output [filter | raw] rule <1-999999> + set mark <1-2147483647> + + Set a specific packet mark value. + +.. cfgcmd:: set firewall ipv4 prerouting raw rule <1-999999> + set tcp-mss <500-1460> +.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999> + set tcp-mss <500-1460> +.. cfgcmd:: set firewall ipv4 output [filter | raw] rule <1-999999> + set tcp-mss <500-1460> + + Set the TCP-MSS (TCP maximum segment size) for the connection. + +.. cfgcmd:: set firewall ipv4 prerouting raw rule <1-999999> + set ttl <0-255> +.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999> + set ttl <0-255> +.. cfgcmd:: set firewall ipv4 output [filter | raw] rule <1-999999> + set ttl <0-255> + + Set the TTL (Time to Live) value. + +.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999> + set connection-mark <0-2147483647> +.. cfgcmd:: set firewall ipv4 output [filter | raw] rule <1-999999> + set connection-mark <0-2147483647> + + Set connection mark value. + ******** Synproxy ******** |