Juniper SSG 550 + Azure site-to-site VPN tunnel up, no traffic

Hi all,

I have configured a Juniper SSG550 and Azure to have site-to-site connectivity via a VPN tunnel.

This was working for the past few weeks, then all of a sudden yesterday, it stopped passing traffic. Nothing has changed my end.

On the juniper I see the tunnel is up:

ln1-fwl01(M)-> get sa              
total configured sa: 10

00000014< 137.117.183.x  500 esp:3des/sha1 23d60503   794 unlim A/-    -1 0
00000014> 137.117.183.x  500 esp:3des/sha1 5764ac64   794 unlim A/-    -1 0

and i've reset the SAs by issuing the command

clear sa 0x14

The tunnel seems to be up on the azure side too.

Not sure what's going on? Any ideas?