Sonicwall 2040 can"t block MSN Messenger 4.7

Dear all,

I have a Sonicwall firewall 2040 with IPS. But I fail to block MSN
Messenger 4.7 even I have enable every IM item on the IPS which can
block higher version MSN Messenger. Would you give me some advice how
to succeed to block it?

Best regards,

-wwu

Re: Sonicwall 2040 can"t block MSN Messenger 4.7

wwu@guomai.sh.cn wrote:
> Dear all,
>
> I have a Sonicwall firewall 2040 with IPS. But I fail to block MSN
> Messenger 4.7 even I have enable every IM item on the IPS which can
> block higher version MSN Messenger. Would you give me some advice how
> to succeed to block it?
>
> Best regards,
>
> -wwu

Can't speak for the firewall itself 2 things I would do:

1. block all traffic outbound with destination port 1863
2. If you host your own internal DNS server for your users, create a
DNS zone for msgr.hotmail.com and then create a A record for
msgr.hotmail.com to 0.0.0.0