Getting to the ground
If driving down then the best area for street parking is around the Fat Cat and Canary pub (see pub map). Any nearer to the ground and it's permit holders only. There's a big match day car park to the south of the ground at Norfolk County Hall. This will set you back 8 quid, and you could well find that it's full an hour or so before kick-off. Plus of course it'll probably take you ages to get out after the game. If you're arriving by train then the ground is a 10 minute walk from the station.
The most popular pub with away fans was for many years the Compleat Angler, a Greene King outlet just over the river from the station. However, it's now home fans only. Away fans are directed to the Waterfront, but you really don't want to go there. Sort of on the way from the station to the ground is Wetherspoons' Queen of Iceni. In theory it's also home fans only, but you'll probably get in if you're not showing colours. You can do much better anyway. For example, a few hundred yards along the river is the Red Lion, which has an extensive selection of beer and gets excellent reviews. Over the road the Lollards Pit also gets good reviews. A bit nearer to the ground, but still far enough away for it to not get too busy, is the Jubilee. It's a lovely traditional pub with a good range of beer, a beer garden, and two pool tables. A bit closer to the ground is the Coach and Horses, which is actually a micro brewery as well as a pub. Like the Jubilee, it gets universally good reviews. However it apparently gets very busy on match days.
West of (and uphill from!) the ground there's a cluster of decent pubs. Best of the bunch is possibly the Kings Arms, a Batemans pub offering around a dozen real ales. They don't do food, but they supply plates, cutlery and condiments so that you can consume food obtained from the various local takeaways. Another of the pubs in the same area is the Rose.
All the pubs mentioned above, as well as quite a few others, are shown on the pub map below.
Football Ground Guide