Aine Douglas wrote:
> Hi Guys,
>> Is there any way to change a machine's TTL setting without recompiling
> a kernel? Every google hit for this involves recompiling the kernel,
> and I'd prefer to use the packaged kernels.
>> The OS is SuSE 10.0 (32 bit), and why? because its on a machine thats
> running an IMAP server and say what you like, but I think increasing
> the TTL from 64 to 250 is going to be useful.
$ sysctl -a | grep ttl
net.ipv4.inet_peer_maxttl = 600
net.ipv4.inet_peer_minttl = 120
net.ipv4.ip_default_ttl = 64
Guess what those are for ;)
For tunnels, at least sit (proto-41):
# ip tun set ttl 64 dev <tunnel>
Greets,
Jeroen
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