(Aliasing, ARPd)
* IP: TCP syncookie support (disabled per default) (CONFIG_SYN_COOKIES) [Y/n/?]
- YES: Recommended : for basic TCP/IP network security
* IP: GRE tunnels over IP (CONFIG_NET_IPGRE) [N/y/m/?]
- NO: This OPTIONAL selection is to enable PPTP and GRE tunnels through
the IP MASQ box
== Non-MASQ options skipped
== (aliasing, ARPd)
* IP: TCP syncookie support (not enabled per default) (CONFIG_SYN_COOKIES) [Y/n/?]
- YES: HIGHLY recommended for basic TCP/IP network security
== Non-MASQ options skipped
== (RARP)
* IP: Allow large windows (not recommended if <16Mb of memory) * (CONFIG_SKB_LARGE) [Y/n/?]
- YES: This is recommended to optimize Linux's TCP window
== Non-MASQ options skipped
== (IPv6, IPX, WAN router, etc.)
* Fast switching (read help!) (CONFIG_NET_FASTROUTE) [N/y/?] n
- NO: This performance optimization is NOT compatible with IP MASQ and/or
packet filtering
== Non-MASQ options skipped
== (Slow CPU, Telephony, SCSI, I2O, etc. )
== Don't forget to compile in support for hardware that you might need:
== SCSI: HDs, CDROMs, etc.
[ Network device support ]
* Network device support (CONFIG_NETDEVICES) [Y/n/?]
- YES: Enables the Linux Network device sublayer
== Non-MASQ options skipped
== (Arcnet)
* Dummy net driver support (CONFIG_DUMMY) [M/n/y/?]
- YES: Though OPTIONAL, this option can help when debugging problems
== Non-MASQ options skipped
== (EQL, NICs, Wireless, IrDA, ISDN, etc..)
== Don't forget to compile in support for hardware that you might need:
== NICs: eth, tr, etc.
== MODEMs: ppp and/or slip
== WANs: T1, T3, ISDN, etc.
== ISDN: for internal ISDN modems
[ Character devices ]
== Don't forget to compile in serial port support for modem users
== Don't forget to compile in mouse support
== Non-MASQ options skipped
== (I2C, Watchdog cards, Ftape, Video for Linux, USB, etc. )
[ File systems ]
== Non-MASQ options skipped
== (Quota, ISO9660, NTFS, etc )
* /proc filesystem support (CONFIG_PROC_FS) [Y/n/?]
- YES: Required to dynamically configure the Linux forwarding
and NATing systems
== Non-MASQ options skipped
== (network fs, NLS, video section, sound, kernel hacking) So go ahead and "exit" and you should be prompted to save your config.
NOTE: These are just the components you need for IP Masquerade. You will need to select whatever other options needed for your specific setup.
Now compile the kernel (make dep; make clean; make bzImage; make modules; make modules_install) , etc. Again, it is beyond the scope of this HOWTO if you have problems compiling your kernel. Please see Section 2.7 for URLs to the KERNEL howto, etc.
You will then have move over the kernel binary, update your bootloader (LILO, Grub, etc.), and reboot. If you have questions about kernel compiling, I highly recommend to consult some of the URLs above in this section.
