root@TinaLinux:~# softap_up yscrs 1234567890
***************************
Start hostapd test!
***************************
wpa2-psk!
Start to set softap!
Message is: OK
Set softap finished!
killall: wpa_supplicant: no process killed
Start to start softap!
SoftAP started successfullyHaving catch sig_chld!
Message is: OK
Start softap finished!
Having catch sig_chld!
Having catch sig_chld!
Having catch sig_chld!
Having catch sig_chld!
Having catch sig_chld!
Having catch sig_chld!
iptables v1.4.21: Couldn't load target `MASQUERADE':No such file or directory

Try `iptables -h' or 'iptables --help' for more information.
Having catch sig_chld!
enable data forward failed!

论坛中搜索相关帖子，按照帖子https://bbs.aw-ol.com/topic/1963/d1-h%E5%90%AF%E5%8A%A8softap_up%E5%A4%B1%E8%B4%A5中大神所说，在kernel_menuconfig中将有关MASQUERADE的所有选项都选上了，仍然不行。kernel_menuconfig相应选项如下：

Symbol: IP6_NF_TARGET_MASQUERADE [=y]                                                                                                
Type  : tristate                                                                                                                     
Prompt: MASQUERADE target support                                                                                                    
  Location:                                                                                                                          
    -> Networking support (NET [=y])                                                                                                 
      -> Networking options                                                                                                          
        -> Network packet filtering framework (Netfilter) (NETFILTER [=y])                                                           
          -> IPv6: Netfilter Configuration                                                                                           
            -> IP6 tables support (required for filtering) (IP6_NF_IPTABLES [=y])                                                    
(1)           -> ip6tables NAT support (IP6_NF_NAT [=y])                                                                             
  Defined at net/ipv6/netfilter/Kconfig:272                                                                                          
  Depends on: NET [=y] && INET [=y] && IPV6 [=y] && NETFILTER [=y] && IP6_NF_IPTABLES [=y] && IP6_NF_NAT [=y]                        
  Selects: NETFILTER_XT_TARGET_MASQUERADE [=y]                                                                                       
                                                                                                                                     
                                                                                                                                     
Symbol: IP_NF_TARGET_MASQUERADE [=y]                                                                                                 
Type  : tristate                                                                                                                     
Prompt: MASQUERADE target support                                                                                                    
  Location:                                                                                                                          
    -> Networking support (NET [=y])                                                                                                 
      -> Networking options                                                                                                          
        -> Network packet filtering framework (Netfilter) (NETFILTER [=y])                                                           
          -> IP: Netfilter Configuration                                                                                             
            -> IP tables support (required for filtering/masq/NAT) (IP_NF_IPTABLES [=y])                                             
(2)           -> iptables NAT support (IP_NF_NAT [=y])                                                                               
  Defined at net/ipv4/netfilter/Kconfig:226                                                                                          
  Depends on: NET [=y] && INET [=y] && NETFILTER [=y] && IP_NF_IPTABLES [=y] && IP_NF_NAT [=y]                                       
  Selects: NETFILTER_XT_TARGET_MASQUERADE [=y]                                                                                       
                                                                                                                                     
                                                                                                                                     
Symbol: NETFILTER_XT_TARGET_MASQUERADE [=y]                                                                                          
Type  : tristate                                                                                                                     
Prompt: MASQUERADE target support                                                                                                    
  Location:                                                                                                                          
    -> Networking support (NET [=y])                                                                                                 
      -> Networking options                                                                                                          
        -> Network packet filtering framework (Netfilter) (NETFILTER [=y])                                                           
          -> Core Netfilter Configuration                                                                                            
(3)         -> Netfilter Xtables support (required for ip_tables) (NETFILTER_XTABLES [=y])                                           
  Defined at net/netfilter/Kconfig:1010                                                                                              
  Depends on: NET [=y] && INET [=y] && NETFILTER [=y] && NETFILTER_XTABLES [=y] && NF_NAT [=y]                                       
  Selects: NF_NAT_MASQUERADE [=y]                                                                                                    
  Selected by [y]:                                                                                                                   
  - IP_NF_TARGET_MASQUERADE [=y] && NET [=y] && INET [=y] && NETFILTER [=y] && IP_NF_IPTABLES [=y] && IP_NF_NAT [=y]                 
  - IP6_NF_TARGET_MASQUERADE [=y] && NET [=y] && INET [=y] && IPV6 [=y] && NETFILTER [=y] && IP6_NF_IPTABLES [=y] && IP6_NF_NAT [=y] 
                                                                                                                                     
                                                                                                                                     
Symbol: NF_NAT_MASQUERADE [=y]                                                                                                       
Type  : bool                                                                                                                         
  Defined at net/netfilter/Kconfig:434                                                                                               
  Depends on: NET [=y] && INET [=y] && NETFILTER [=y] && NF_CONNTRACK [=y]                                                           
  Selected by [y]:                                                                                                                   
  - NFT_MASQ [=y] && NET [=y] && INET [=y] && NETFILTER [=y] && NF_TABLES [=y] && NF_CONNTRACK [=y] && NF_NAT [=y]                   
  - NETFILTER_XT_TARGET_MASQUERADE [=y] && NET [=y] && INET [=y] && NETFILTER [=y] && NETFILTER_XTABLES [=y] && NF_NAT [=y]

看提示应该和iptables有关，又把iptables相关选项全选上，仍然不行。如下：

Symbol: IP6_NF_IPTABLES [=y]                                                                             
Type  : tristate                                                                                         
Prompt: IP6 tables support (required for filtering)                                                      
  Location:                                                                                              
    -> Networking support (NET [=y])                                                                     
      -> Networking options                                                                              
        -> Network packet filtering framework (Netfilter) (NETFILTER [=y])                               
(1)       -> IPv6: Netfilter Configuration                                                               
  Defined at net/ipv6/netfilter/Kconfig:74                                                               
  Depends on: NET [=y] && NETFILTER [=y] && INET [=y] && IPV6 [=y]                                       
  Selects: NETFILTER_XTABLES [=y]                                                                        
  Selected by [y]:                                                                                       
  - IP_VS_IPV6 [=y] && NET [=y] && NETFILTER [=y] && IP_VS [=y] && (IPV6 [=y]=y || IP_VS [=y]=IPV6 [=y]) 
                                                                                                         
                                                                                                         
Symbol: IP_NF_IPTABLES [=y]                                                                              
Type  : tristate                                                                                         
Prompt: IP tables support (required for filtering/masq/NAT)                                              
  Location:                                                                                              
    -> Networking support (NET [=y])                                                                     
      -> Networking options                                                                              
        -> Network packet filtering framework (Netfilter) (NETFILTER [=y])                               
(2)       -> IP: Netfilter Configuration                                                                 
  Defined at net/ipv4/netfilter/Kconfig:121                                                              
  Depends on: NET [=y] && INET [=y] && NETFILTER [=y]                                                    
  Selects: NETFILTER_XTABLES [=y]

求助各位，不知道还需要怎么设置？