I have several times received this message "%CRYPTO-4-IKMP_NO_SA: IKE message from xx.xx.xx.xx has no SA and is not an initialization offer"on one of my remote site 3745 routers. It is connected to a DSL service and connected via an IPsec tunnel ...

Looking for specifics on exactly what issues would arise when you find a singlemode fibe connected to an multimode SX GBIC.Anything more than a larger loss than what would happen when a 50 micron and 62.5 micron cables are connected together?