[EMAIL PROTECTED] wrote:
> service anymore. I can establish the PPP link without error, I can ping the
> PPP address shown by IFCONFIG, but I cannot ping the DNS servers. Linuxconf
> still reports that IP packet forwarding is enabled and the PPP connection
> is still set as the default route. The search order is host table, then
> DNS. The DNS server IP addresses are still valid. I can't find any unusual
> startup messages. I have reinstalled Linux 5 times and had the same
> experience each time. The new kernel that I am building each time does not
> support modules, but it seems that PPP shouldn't care if serial and
> networking support are built in. Any help you can give might save what hair
> I've got left after tearing most of it out.
Can you ping the remote IP adress in PPP ifconfig also after getting
connected? If you can then it is strange if you can't reach the DNS
servers behind. Maybe you have set the masquerading the wrong way?
Anyway it shouldnt be required to compile a new kernel, the RedHat
standard kernel includes all you need (did in 5.1 at last). Heres my
approach to setup ipmasq on a brand new RH installation:
1. Install RH, setup localnet and stuff, reboot and check that contact
with localnet (eth0) is okay.
2. Setup PPP, dial the ISP, check that you can reach Internet from the
server.
3. Configure IP masqurading via linuxconf:
a) Enter firewall, enable forwarding rules (none of the others!), and
load all modules.
b) Add new forward rule, check "Do masquerading", From 192.168.1.0 (the
local netnumber) To 0.0.0.0
c) Activate configuration, and check it with "ipfwadm -F -l" (list all
forwardrules)
4. Check that all routes, default route, IP, DNS/host info and other net
stuff are still okay.
5. Open PPP link, check that routing works from server to internet (ping
ISP DNS server).
6. Go to clientbox, set default gw to the server.
7. Ping the server, check that local net is okay.
8. Ping the Internet, if PPP link is up and IPMASQ activated it should
now work.
9. If trouble, always use IP numbers to ping tests, DNS is often the
hardest to configure.
Maybe I missed something here, and maybe this does not solve your
problem, but the point is that all you need is included in RH, fiddling
with new kernels etc will just make more confusion (I do belive that
network and serial support is always required in the kernel (or module)
for PPP?)
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