OpenWRT L2TP Client
Yep, PPTP is no longer an issue since we have L2TP access node.
And, Linksys WRT54GL running a stock firmware is such a dull device… No remote management, no dhcp lease info running behind pptp/l2tp connection, port forwarding done only for wan (not underlying eth0.1)…
So I hacked up ifup script for rp-l2tp to bring everything up.
Compiled ppp_synctty.o (can be selected in Kernel Modules / Network Support)
Compiled n_hdlc.o module (not in stock openwrt build):
Update: You can enable the module via make kernel_menuconfig
Index: package/kernel/modules/other.mk =================================================================== --- package/kernel/modules/other.mk (revision 15274) +++ package/kernel/modules/other.mk (working copy) @@ -822,3 +822,18 @@ $(eval $(call KernelPackage,rfkill)) +define KernelPackage/hdlc + SUBMENU:=$(OTHER_MENU) + TITLE:=HDLC line discipline support + KCONFIG:= \ + CONFIG_N_HDLC=m \ + CONFIG_SERIAL_NONSTANDARD=y + FILES:=$(LINUX_DIR)/drivers/char/n_hdlc.$(LINUX_KMOD_SUFFIX) + AUTOLOAD:=$(call AutoLoad,20,hdlc) +endef + +define KernelPackage/hdlc/description + Kernel module for HDLC line discipline support +endef + +$(eval $(call KernelPackage,hdlc))
Warning – run make with V=99
since it will ask (yes, literally ask) questions
whether to include other non-standard ports support. I guess we can live with
this for one-time recompile, though for proper operation default kernel .config
should be modified.
Modified /etc/ppp/options to contain:
replacedefaultroute defaultroute usepeerdns mtu 1460 default-asyncmap nopcomp noaccomp noccp novj nobsdcomp nodeflate lcp-echo-interval 0 lock noauth
persist
will not work since it is l2tpd what is controlling pppd, not
vice-versa. pppd cannot renegotiate l2tpd link, therefore you will get a stuck
pppd process constantly trying to reopen the pty.
and added the following config to /etc/config/network
:
config interface internet option proto l2tp option username "***@internet.beeline.ua" option password "***" option server 10.0.0.9 option ifname "ppp0" option parent wan
Huh, interested in parent option? See OpenWRT Ticket#1430.
Create symlinks from /etc/l2tp.conf to /tmp/l2tp.conf and enjoy the l2tp connection.
And BTW – it all runs on “Linux OpenWrt 2.4.35.4 #3 Sun Apr 19 23:31:02 EEST 2009 mips unknown” since b43 support in 2.6 is not yet stable for production use :(