def install pptp ppt-setup一切顺利~结果，死活连接不上~~~
[root@localhost ~]# pptpsetup --create al --server x.x.x.x --username --password --start
Using interface ppp0
Connect: ppp0 <--> /dev/pts/1
LCP: timeout sending Config-Requests
Connection terminated.
Modem hangup求救~
I have googled 'LCP: timeout sending Config-Requests' for a while, and can't find a solution. Some posts said it is related with router setting, but I have my MAC and android phone connected without problem, so it is not my router's problem.
After poking ppp setting around, I find solution working for me. Edit /etc/ppp/options, enable option silent, then problem solved.
# With this option, pppd will not transmit LCP packets to initiate a
# connection until a valid LCP packet is received from the peer (as for
# the "passive" option with old versions of pppd).
silent老外有个说这样就搞定~可是，可是，为神马还是不行~