diff options
Diffstat (limited to 'iptables.8')
-rw-r--r-- | iptables.8 | 12 |
1 files changed, 3 insertions, 9 deletions
@@ -533,16 +533,10 @@ The type given can be .BR icmp-port-unreachable or .BR icmp-proto-unreachable which return the appropriate ICMP error message (net-unreachable is -the default). The following special types are also allowed: -.B tcp-reset -is only valid if the rule also specifies -.BR "-p tcp" , -and generates a TCP reset packet in response. This is generally not a -good idea (modern stacks should deal with ICMPs on TCP connection -initiation attempts). +the default). The option .B echo-reply -can only be used for rules which specify an ICMP ping packet, and -generates a ping reply. +is also allowed; it can only be used for rules which specify an ICMP +ping packet, and generates a ping reply. .SS TOS This is used to set the 8-bit Type of Service field in the IP header. It is only valid in the |