Solaris上的bsd數據包過濾器，為什麼不允許ping？

我有兩個介面，一個是 net0 和 192.168.0.30 ip，另一個是 vnic0 和 10.2.0.1 ip

這是我的 pf.conf，solaris 是 11.4

ext_if="net0"
int_if="vnic0"
localnet="192.168.0.0/24"
internalnet="10.2.0.0/24"

int_tcp_services = "{www, https}"
int_udp_services = "{domain}"

set skip on lo
set loginterface $ext_if

block return in log all
block out all

antispoof quick for $ext_if

# Block 'rapid-fire brute force attempts
table <bruteforce> persist
block quick from <bruteforce>

#enable icmp for localnet
pass inet proto icmp from $localnet to any keep state
pass inet proto icmp from $internalnet to any keep state
pass inet proto icmp from any to $ext_if keep state
pass inet proto icmp from any to $int_if keep state

# SSH is listening on port 22
pass in quick proto tcp to $ext_if port 22 keep state (max-src-conn 15, max-src-conn-rate 5/3, overload <bruteforce> flush global)

# bind is listening on port 53
pass in quick proto tcp to $int_if port 53 keep state
pass in quick proto udp to $int_if port 53 keep state

# Allow essential outgoing traffic
pass out quick on $ext_if proto tcp to any port $int_tcp_services
pass out quick on $ext_if proto udp to any port $int_udp_services

禁用防火牆的所有介面都接受 Ping 僅在啟用防火牆的情況下，net0 才接受 Ping。

有什麼解決辦法嗎？

找到解決方案，使用這個基本但工作的 .conf 從這裡複製並編輯

# Vars
ext_if="net0"
int_if="vnic0"
webports="{443, 80}"

##  make IP reassembly work
set reassemble yes no-df

## ignore loopback traffic
set skip on lo0

# block everything unless told otherwise
# and send TCP-RST/ICMP unreachable
# for every packet which gets blocked
block return in log all
pass out all

# accept incoming SSH connections
pass in proto tcp to $ext_if port 22

# accept webeservers connections
pass in proto tcp to $ext_if port $webports

# accept icmp
pass in proto icmp all

## allow incoming messages from DHCP
pass in inet proto udp from port 67 to port 68
pass in inet6 proto udp from port 547 to port 546

## packet too big - needed for PMTUD
pass in inet6 proto ipv6-icmp icmp6-type 2

## router advertisement
pass in inet6 proto ipv6-icmp icmp6-type 134

## neighbor solicitation
pass in inet6 proto ipv6-icmp icmp6-type 135

## neighbor advertisement
pass in inet6 proto ipv6-icmp icmp6-type 136

## allow all connections initiated from this system,
## including DHCP requests
pass out

我認為您想要在 lo 上設置跳過/在 lo0 上設置跳過的規則集中有一個錯字。這應該可以修復本地 ping 的防火牆不當行為。請注意，所有本地流量都綁定到 lo0，儘管您可能正在探測綁定到 NIC 的地址。反欺騙會針對此類 ping 進行處理。

引用自：https://unix.stackexchange.com/questions/430692