[AusNOG] Telstra ADSL MTU

[Adam Baxter]

Hi All,

I have had 2 Customers in the last few weeks that have had MTU problems.
This is my Dialer interface.

interface Dialer0
 ip address negotiated
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip mtu 1452
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 load-interval 30
 dialer pool 1
 dialer-group 1
 no cdp enable
 ppp authentication chap callin
 ppp chap hostname xxxx at direct.telstra.net
 ppp chap password 7 xxxxx
end

 I have never had any problems accessing websites until the last few weeks.
Does anyone know what might have changed at the Telstra end? I had to set
"ip tcp adjust-mss 1452" on the Dialer interface to make it work. Never had
to in the past with a number of other connections. Perhaps I should have
all along?

Regards,

Adam.
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